AITA for doing nothing for the child my ex-wife had from her affair even now that I have primary custody of our kids?

The OP, a 36-year-old man, ended his marriage six years ago after discovering his then-wife was cheating on him. Following the birth of her child with the affair partner, the OP’s name was removed from that child’s birth certificate, and he maintained a 50-50 custody arrangement for the three children they shared.

Since the affair partner left three years ago, the ex-wife has repeatedly asked the OP to take an active, fatherly role in the life of her youngest child, including offering adoption or simple expressions of care like gifts. The OP has consistently refused, citing his lack of biological connection and the wishes of his own children, leading to increasing hostility from the ex-wife who accuses him of treating an innocent child poorly. The central dilemma for the OP is whether his refusal to engage with his ex-wife’s youngest child makes him an awful person.

AITA for doing nothing for the child my ex-wife had from her affair even now that I have primary custody of our kids?

Six years ago I (36m) learned that my ex-wife (37f) was cheating on me. I ended our marriage and filed for divorce but everything was delayed because she was pregnant. Once her child was born and it was established that I was not the biological father, my name was removed from the birth certificate and the bio father’s name was added.

They were a couple at this point.

Throughout we shared 50-50 custody of our three children together. My kids were old enough to figure out what happened. I got them therapy eventually after my ex resisted putting them in therapy and we had talks about everything.

I did my best to reassure them that they didn’t need to hate anyone for me or reject anyone on my behalf. But their relationship with their mom never recovered and the relationship with her youngest never existed from what I know.

The affair partner took off three years ago and since then my ex-wife has requested that I take an active part in her child’s life because I’m so involved in our kids lives. Each and every time she has made this request via parenting app I have firmly said no.

She tried to take full custody of our kids because I refused to include her youngest and a judge told her it didn’t work like that and I did not have a legal responsibility to her youngest child.

I ended up with primary custody of my children a year ago because my ex-wife made some very bad decisions and not only lost the house she was staying in but lost her job, had no savings and overall was left with next to nothing.

After this happened her requests for me to do something for her child increased. I ignored them for the most part and did as I was instructed to do by my lawyer and replied to the ones that indicated I was responsible for ensuring the child was adequately cared for.

Those I did say no to and reminded her there were places she could go if she needed help feeding her youngest.

Our kids still must go to her house for her every other weekend visitation and they hate it. Which angers my ex because they have zero relationship with her youngest and it angers her that I won’t ensure that all of the kids have a good relationship and that her youngest knows what it’s like to have a fatherly figure.

She said she would allow me to adopt her child if I was willing.

Then she said she would at least like me to do something. To express some care for her child. Send birthday and Christmas gifts, send food occasionally, offer to let her child join in for some activities.

I do none of this. I have asked my kids if they would like to spend more time with their half sibling or give gifts but they have always said no and they told me when they can make the decision not to go to their mom’s house they won’t have anything to do with her child either.

My ex has become more angry because there are things her child has missed out on and apparently they ask more questions now. Some of her messages on the app are now extremely hostile.

There’s nothing I can do about this for the moment but they’re saved so if we end up back in court they can be shown. She told me I act like I’m such a good person but I treat a child like shit.

I don’t feel bad exactly. I know I would have a very hard time being around this child and they’re innocent so I prefer to stay away and not let them feel the weight of my issues with their mother and how they were conceived.

But maybe that makes me an awful person. I know at the end of all this is a child who has only got my ex and nobody else and the child is innocent like I stated. Which brought me here to ask…

AITA?

Here’s how people reacted:

WhatiworetodayinNY

NTA- Why isn’t she badgering the child’s *actual* father to take such an active role in his child’s life?? I guess it’s a testament to what a great father you are to your own kids, but you don’t have any reason to participate in the life of a child that is not your own, especially one made by the affair partner of your ex wife. It’s great that you have boundaries and enforce them, as it’s not up to you to make sure this child has a father figure and a life filled with all the things you can provide your own children. Also demonstrating boundaries to your children seems to be a positive influence for them too. Tell your ex to direct her texts to the correct recipient next time.
LouisianaGothic

NTA

I will say though, it might be worth asking your kids to consider taking a softer stance with their half sibling. Before anyone jumps me it’s not out of sympathy for your ex and her child (even though her child is innocent and undeserving of this kind of rejection).

It’s more for your your peace of mind as a father, it’s not your kids’ fault but their rejection is going to be a defining source of pain for this child, maybe their whole life. You have no idea how this will impact or manifest for any of them (all kids involved) as they get older. I think you’d give them the best chance in life if they weren’t tethered by such a negatively charged relationship.

TravelDaze

NTA — You are not responsible for her poor decisions, and although her youngest is innocent, you have no legal or moral obligation to that child. If you had been together in the early years of the child’s life, and been in a father role creating a bond, then it would be a more complex situation because of the bond. But that is not the case here. You have never had a relationship, and should not feel guilty for refusing to create one.

The issue is not with you standing firm in refusing any interaction, the issue is with her terrible parenting and very poor decision making.

TWAndrewz

You’re not an AH, but you’re missing an opportunity to be a really great person and show your kids what embodying the best of humanity looks like.

If you definitely can’t bring yourself to treat your kids half sibling well, then it’s better that you don’t interact with them. But if you’re not interacting with them out of spite for your ex, you’re punishing the wrong person (It’s not this kid’s fault they were born to a trash mother), and diminishing your opportunity to be a great man in the process.

Reflog1791

NTA but id like to see you help that kid on occasion and chalk it up to community service. Your ex is a mess but we can still feed hungry kids. And it wouldn’t kill you to take him to the zoo with your kids. And you definitely need to talk to your kids about having respect for their innocent half sibling. It wouldn’t be that hard to spit it out. 

Overall as time passes the sting of this whole thing will wear off and you can just be a cool uncle figure. Sorry this happened to you. Good luck.

Bulky-Measurement684

NTA but please remember that no matter what her youngest child is still the sibling to your child and none of the children asked for any of this. It seems like you are the most mature adult here so I would hope that you could help your children know that it’s ok to have a relationship with their younger sibling. Honestly, would a gift for a bday or Xmas that you purchased but the kids picked out and gave to their youngest sibling hurt?
Traditional-Trade795

NTA – not you child not your problem. imagine if some ex you had no contact with for 10 years suddenly reached out asked for cards for their kid that you have nothing to do with. insane…

not only is she entitled as fuck, she is refusing to sleep in the bed she made for herself. sounds like you have been more then gracious and a mother losing primary custody means usually she has catastrophically failed in her duties..

whocaresgetstuffed

Nta. It’s her responsibility to include her and bio dads extended family or take the kid to play groups to make friends.. she can ask family friends to be aunty/uncle…anything other than confusing the poor child.

She could get the child a Male mentor or ask a gay couple to be foster uncles etc

So many options she’s too lazy to consider cos she’s more concerned about making up fantasy-tales.

Crystalskyye

Your ex is wild for tryna guilt u into fathering a child that came from her betrayal. like yes the kid is innocent but that doesn’t mean u owe them a damn thing. she’s tryna dump her consequences on u and use the “but he’s just a kid” angle to make u feel bad. ur boundaries are valid af and it’s not ur fault her life fell apart. she made her bed, now she mad u won’t lay in it wit her.
DCDipset

Not the asshole. I just hope that your kids don’t treat their half sibling poorly when they are around them. That lil one didn’t ask for this mess yet they’re a casualty of it and that could set their life on a path of chaos and hardship.

Again, you’re not the asshole in all of this.

Creative-Ad-145

NTA why are you feeling bad , you did nothing wrong.
But you should talk to your lawyer to make her stop harassing you because it will eventually effect your health.

Here everyone on reddit will agree you did nothing wrong but her constantly asking you. It will make you feel guilty

LincolnHawkHauling

The child is innocent and if your ex wasn’t a complete bitch about it, I’d bet you’d help out a little.

Is the baby daddy paying child support or is she one of these strong women “we don’t need him or his money” who think it’s a big flex to let him off the hook for child support?

henchwench89

NTA I feel for the child but your ex sounds like the give and inch take a mile type of person. If you decided to help for the childs sake (sending money or food) or giving gifts my bet is she would have you in court because you’ve “taken a parental role” and should pay child support
SpotlessEternalMind

How are the consequences of her actions your problem? She’s a grown woman, making her own choices.

Stay strong on what you’re doing, being present for your children. You don’t have to do anything for your ex-wife or her youngest.

NTA. She made her bed, now she has to lay on it

Striking_Rip851

Nta there are resources she can avail herself of for food and even gifts for her child. It is not your responsibility to care for a child that is not yours, honestly keeping your distance so that your feelings don’t show directly to the child is the kind thing to do.
Dapper_Violinist9631

Poor kid. You’re NTA and you actively distancing yourself so that kids not collateral damage is being mindful of the child and that they are innocent in their conception.

If wife lost custody of your kids is other kid in danger too?

MikeReddit74

NTA, and it’s not a question. She has a set of brass balls to think you’d go out of your way for the result of her affair. She needs to find the baby-daddy and give him all the shit she’s giving you. Keep being a dad to *your* kids.
thedehr

What the fuck? Thst kid is your ex-wife’s responsibility. You have zero ties to the child.

It’s unfortunate for the kid, but she literally made this mess and it’s no one’s responsibility to clean it up other than hers.

iknowsomethings2

NTA. YOUR children are your responsibility, not her affair child.
You’re looking out for your children and doing what is best for them/

Your ex should go after her ex if she wants involvement. It’s not your problem.

MoomahTheQueen

That child has a father and your ex should be making her requests to him. Yes it’s sad that an innocent child is suffering, however, I think you are doing what is necessary for your own kids’ well being
BabyD2034

ESH. I think everyone resents the child and that’s sad for them. The kids should be encouraged to have a relationship with their half sibling. I hope this unhappiness isn’t running off on the kids.
Amazon_Fairy

NTA, why hasn’t she gotten support for the child from that child’s father? Doesn’t she have extended family or paternal extended family? I can’t believe she’d even ask you, after her betrayal.
Honest_Weird_9715

NTA as sorry as I am for the child you aren’t their parent. You take care of your children. If she wants something for the youngest she should go to the actual father.
Medical-Potato5920

NTA. This is not your child. You are not responsible for them. You are not cruel to the child. You are just refusing to have a relationship with an unrelated child.
Acceptable-Bowl-5609

You’re NTA given the very complicated situation, but my heart goes out to that kid at the same time. They have been dealt a very bad hand starting out in life.
Pleasant-Object-3742

The loser in it all is an innocent child, once again.
My heart aches for this baby. I know she’s not a baby…but we all remain baby’s. Somebodies baby.
Serendi_ptty21

NTA.

Your ex f#ucked around and found out. She should put that energy into locating that deadbeat and drag him to court for CS.

Not your problem.

u_212

Another day, another brand new profile with a made up story about being asked to care for an ex’s affair child….
Uglym8s

NTA – she need to put this much energy into ensuring that the child’s actual father is contributing
Haitian_King

You’re valid in your feelings. You know yourself and you have boundaries. That should be applauded
Specialist_Use_7692

NTA. By her reasoning you should be making sure every fatherless child has a father figure!
No_Jeweler_7546

I can’t believe the audacity she cheated on You and expects you to step up oh hell no
rottenavocadotoast

Love these fake stories. They always involve the wife having a kid with another guy
winterworld561

She needs to track down the bio dad and take him to court for child support.
Own-Tank5998

NTAH, she truly can not take any responsibility for any of her actions.
Fun_Concentrate_7844

NTA. I feel terrible for that child, but it isn’tyour responsibility.
Just-a-mum

NTA. Tell your wife to direct her anger towards her child’s father.
SoBoredsoHereIaM

why isn’t she doing all this to the biological father of her kid?
TacticalFailure1

NTA. Shes trying to get you on child support for her kid lol
HorrorLover___

Not your circus, not your monkeys

Conclusion

The OP is facing a significant conflict between maintaining firm boundaries related to his past trauma and the perceived moral obligation toward an innocent child who lacks a father figure. While the OP has legal protection regarding the youngest child, his ex-wife perceives his lack of action as a cruel rejection, causing severe relational strain, especially as their shared children resent visiting their mother.

The core question remains whether the OP should override his personal discomfort and the expressed wishes of his children to offer minimal support to his ex-wife’s child, or if protecting his emotional space and respecting his own children’s boundaries justifies complete non-involvement. Is the OP obligated to act as a supportive figure to this child, or is complete detachment appropriate given the circumstances of conception and the ongoing conflict with the mother?

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