AITA for not wanting to have my ex’s stepdaughter some weekends?

A fractured family struggles to redefine boundaries and trust in the wake of betrayal. A mother, wounded by her ex-husband’s infidelity, fiercely protects her daughter from forced closeness with a stepdaughter she never chose, standing firm against manipulation disguised as opportunity.

Amid the tangled emotions, the ex’s attempt to engineer a bond between the girls feels less about connection and more about control. The mother’s unwavering “no” is a powerful stand for her daughter’s feelings, highlighting the raw pain and resilience that come from guarding a child’s heart after a family’s fracture.

AITA for not wanting to have my ex's stepdaughter some weekends?

I (32f) have an 11 year old daughter with my ex. We divorced two years ago because he cheated. He is now with the other woman and is married to her. She has a daughter who will be 11 soon.

Ex’s MIL is sick and his wife has been going to stay some weekends to take care of her. Ex works weekends (nights, usually) and he asked me if I would take his stepdaughter those weekends his wife is gone.

He framed it as being more time for the girls to bond. I said no. He called it unfair because I gave it no consideration. I told him I didn’t need to consider it and that my answer was no.

He said our daughter might say she wants it if I ask her and that they would throw me some cash for it. Eventually, after I came down hard on my no, he said the reason he wants me to do it is our daughter has chosen not to have a close relationship with his stepdaughter and he thinks my interacting with her and welcoming her into my home would cultivate our daughters willingness.

I asked him was she mean or rude to the girl, he said no reluctantly and I told him that was all I was willing to interfere in and I am not responsible for cultivating our daughters relationship with his stepdaughter.

I told him the discussion was over. He and his wife are pissed about my refusal and say I would be helping them out while they’re in need.

Here’s how people reacted:

Mesapholis

there was a very similar case on this sub recently, genders switched – a father who took his kid on adventurous excursions because he wanted to bond with him (not sure if it was a daughter or son) and OPs ex got upset because he refused to take the step kid along.

the entire sub was on OPs side, citing “bonding with his blood” and you know what, I think that is fair.

OP here has absolutely no obligation to care for anyone else other than her daughter – and the inconsiderate argument? Honestly I’d say it was fucking inconsiderate to cheat on someone and then be upset OP doesn’t freely offer up to babysit the kid of the woman who fucked her ex – it’s not the kids fault, how shitty this went down, but you know what? Life is shitty sometimes, even when it is nobodys fault.

And OP shouldn’t be ousted as TA just because she doesn’t support ‘bonding time’ between step siblings on the certain weekends.

NTA – if OPs ex didn’t marry and then divorce OP, he could have met the woman he cheated with and STILL had to employ a babysitter because he wouldn’t have OP to blame for being an unsupportive motherfigure to their daughter.

OPs ex is a shitty person AND too cheap to pay for labour

Edit: this situation pisses me more off and I had to come back. The next time your ex or his new wife complains, maybe tell them “should have cheated with a guy who has babysitter money”

juzme99

NTA what a load of hog wash, what are they in need of, a free babysitter. His wife’s child is no responsibility of yours, nor the relationship between the step- sisters.

She should be taking her child to her mothers with her. Most grandmothers love to see their grandchildren, when they are down it cheers them up.

Why would your child want to be friends or get along with the child, whose mother broke up her family.

You can easily see that they thought long and hard, about what to say to you. Trying to appeal to the mother in you. If they have your child every second weekend, their request would mean that both of the girls would have to spend every weekend together.

This is the worst bit of entitlement I have seen yet on this thread. Most likely they want some weekends to them selves. Tell me who minded her child when she was having an affair with your ex-husband. Probably her mum and now she is not available. Edit; After I posted this, I reread it and started laughing my guts out, when it dawned on me this was something my ex would do.

rileyseal1806

YTA, in my opinion. I don’t think it something you would have to facilitate all the time or even not at all buttt you should try to talk to your daughter about having a relationship with her stepsister. If this is someone her dad is serious about you’re only making it harder and I promise you she knows that you don’t want anything to do with the dad or the stepmom or her kid which is probably making your kid not want to interact stepdaughter. Not only is this unfair to your kid isn’t fair to the stepdaughter you guys are supposed to be coparenting and I think you’ll see this come around and bite you in the butt when you need something from them which you inevitably will. I don’t think you have to bring her over to your house but maybe just a few play dates or even a conversation with your daughter would go along way. Don’t make the divorce the kids problem on either side. These girls could cultivate a really nice friendship and even sisterhood if every parent involved would foster that relationship. hope that helps good luck
[deleted]

NTA you’re not responsible to care for the child of the woman that literally played a hand in breaking up your marriage. Also, if your daughter doesn’t like her step sister, guaranteed there’s a valid reason for it. If your ex husband is so worried about them not bonding maybe he should look into the reason why his daughter isn’t a fan of his step daughter. Maybe figure out if some shit is going down behind closed doors.

Edit to add: *many* things fall under the “valid reason” category, not just the step sister being a dick like I suggested in one reply. So y’all need to chill out with your “mAyBe ThEy JuSt DoNt HaVe AnYtHiNg In CoMmOn or they’re just ReSeNtFuL oF tHe SiTuAtIoN” because both of those, as well as the possibility the step sister maybe isn’t the nicest, ALL fall under the “valid reason” category.

rawsugar87

NTA. I wouldn’t do it in a hundred years. You are not in a thruple. Also, there is literally no reason the 11-year-old can’t stay at grandmas as well. Will it be fun? No. Is that life? Yup. She doesn’t get to abandon her daughter because she’s helping her husbands Mom. The kid can share a bed with Mom or sleep on the couch. I have no idea why they haven’t considered this.

Think about it this way if your mom needed you on the weekends would that make you forfeit your daughter to your ex? Nope, you’d take her with you.

They are make believing a problem to make things easier on your exes new wife. It’s really weird that they are trying to make this your problem. Also, it’s pretty rich that he said all that crap about you helping the girls bond when the reality is babysitting.

slybird

Whether you are the asshole or not depends entirely on how close you are to the girl. What is your relationship to this stepdaughter? Does she have an emotional bond with you or is she emotionally distant? Are you cutting the girl off cold without easing her out of her relationship with you? Will she be feeling hurt by an abruptly cutting yourself out of her life?

We can divorce and breakup with partners, but that doesn’t mean we shouldn’t take the feelings of children that might get hurt by the emotional shrapnel into consideration.

Kaerinu5

Hmmm so he cheated on you and *both* cheaters somehow expect you to ‘help them in time of need’? Are they high…? Like… Do they not know what they did to you and your daughter? Ridiculous.

Also please look into why your daughter doesnt want a relationship. I mean after 2 years theres got to be a reason. Dont wanna list all possibilities but maybe shes getting bullied or has some resentment towards her dad or something? No need to get her to be nice but at least get to know why.

NTA

cyfermax

>he thinks my interacting with her and welcoming her into my home would cultivate our daughters willingness.

He might be right, but that’s still about a million miles from being a problem you need to solve.

You’re not responsible for his other kids, step- or otherwise. His childcare issues aren’t your issues, except where they relate to YOUR child. NTA.

HeatherAnne1975

NTA at all. Your daughter needs one on one time with her mom. It’s jut fair if she’s asked to split her time with you with this girl. Particularly if she does not like her. She’s an individual, they are not a package deal just because their parents are married. Your ex is only asking this to convenience him. You need to do what is best for your daughter.
wildrabidpartydog

NTA lmao dude cheated on YOU and the woman HOMEWRECKED your marriage WITH HIM?? And they think they can ask you for ANYTHING???????? BRUHHHHHH I can’t help but laugh this is so funny. Not your problem at all, not your kid, and they don’t deserve shit from you.
annshine

😂😂😂 I don’t mean to laugh but the audacity of some people never fails to amaze me. The people who had an affair which broke up your marriage are in need of your help?

I would be so ashamed I would never even have the nerve to ask you. NTA

Morrigan-71

NTA.

>He said our daughter might say she wants it if I ask her

>he said the reason he wants me to do it is our daughter has chosen not to have a close relationship with his stepdaughter

Well, if that isn’t a contradiction…

brassninja

Not your problem. Also, you have no reason to believe his story about the girls needing quality time. Is that true or are he and his nee wife looking for a cheap/free babysitter?
Taadaa93

Nta, yes it might help them bond, but it also could make your daughter resent you if she isnt getting along with her stepsister and the adults force her into it.
remembertowelday525

What did I just read?

Your cheating ex is pressuring you to babysit homewrecker’s kid?

NTA. You know that, just be strong about it.

Conclusion

The Original Poster (OP) established a firm boundary against assuming responsibility for her ex-husband’s stepdaughter during his wife’s absence. The central conflict stems from the ex-husband’s expectation that the OP should actively participate in managing his blended family obligations, which conflicts directly with the OP’s established position that she is not responsible for cultivating her daughter’s relationship with the stepdaughter.

Was the OP justified in refusing to take on occasional childcare duties for her ex-husband’s stepdaughter when the request was framed as a means to improve her own daughter’s social dynamics, or should she have considered helping the family during a time of need?

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