In the crucible of betrayal and loss, they faced a heartbreaking choice: cling to the father who stood by them through thick and thin, or embrace the strangers in their bloodlines as “real” family. But love does not always follow the lines drawn by DNA, and in this fractured family, the true battle was not for biology, but for the heart’s enduring claim to fatherhood and belonging.
There is me (25f), my sister (27f), and brother (28m) involved here.
We were raised together and until 2019 we believed we were a nuclear biological family. Then we found out our dad wasn’t our bio dad, which even he didn’t know. It then turned out my older siblings shared a bio dad, but I had a different one.
We were also first cousins because their bio and my bio were brothers.
Dad left our mom, hurt, betrayed, and overall disgusted that she had lied to him for two decades. I was equally mad that she lied and hurt my dad. My siblings were less willing to cut her off, but their relationship strained majorly.
Dad moved in with me and my then boyfriend, now fiance, and Covid hit. At this point, all three of us agreed he was dad no matter what. And there was nothing that could change that.
I meant it; they didn’t.
They found their bio father and mine by extension, and have decided that he is now “real dad” and that our dad is just a stepdad. My brother has even corrected his two little girls who called dad grandpa, into saying he’s stepgrandpa and that’s what they call him, while bio gets called grandpa.
It broke my dad’s heart, and he decided it was too much for him to accept. This is after talks between them where he was essentially told to know his place, stay in his lane, and was demoted with the clear message being nothing would change.
I am so pissed at them. They have tried to push me to meet my “real dad” and have told me it’s okay to go back on what we said.
Initially, they were invited to my wedding, but with this whole mess, I told them they were no longer welcome, and I did not want them to show up. They told me that just because they have a relationship with their “real dad” doesn’t change things between us.
I told them it does. That if dad isn’t our real dad after EVERYTHING he has done for us, then we’re not “real siblings,” because technically we are HALF siblings and cousins. That my dad is still my dad 100%, and biology is meaningless to me.
And so it was best for them not to come, because I no longer want them there.
What I said hurt them. My SIL (married to my brother) told me I was an asshole for throwing half in their faces and cutting them from my wedding like we haven’t been siblings our whole lives.
I think that’s almost more annoying to me, because that’s our dad. But he can be shit on and discarded like he’s nothing. AITA?
Conclusion
The original poster (OP) is deeply hurt and angry because their siblings have formally rejected the man who raised them as a father, rebranding him as a ‘step-grandpa’ while embracing their biological fathers. The central conflict lies in the OP’s unwavering commitment to the relationship built through years of care versus the siblings’ insistence on prioritizing biological ties, leading the OP to disinvite them from the wedding.
Is the OP justified in prioritizing the emotional bond with their long-time father over the siblings’ new biological connections, even if it means severing ties and excluding them from a major life event? Or, are the siblings entitled to redefine their parental relationships based on biological truth, and is the OP unfairly punishing them for acknowledging their biological fathers?
Here’s how people reacted:
*”My SIL (married to my brother) told me I was an asshole for throwing half in their faces and cutting them from my wedding* ***like we haven’t been siblings our whole lives****.*”
So, your siblings are hypocrites. They willingly threw away their relationship with the man who loved and raised them as his own for over 20+ years (EVEN after it was revealed that his wife slept around with at least 2 other men), yet they cry “unfair” when you do the same to them for their attitude/actions towards your father?
NO. They made their choices, they can live with them. Your siblings are horrible people. To be clear, knowing their bio dads is NOT an asshole move, what is an asshole move is how they have been treating your father since then. They are punishing your father when he was the one who was most betrayed by your mother. You are all in this mess because of HER. Yet, they take it out on him?
**INFO:** Is your mother invited to your wedding?
If not, tell them they can spend the time with her, they seem to take after her anyway. No problem betraying the ones who love you for your own selfish reasons. They’re all pathetic.
If I were you, I would point out their hypocrisy and send them a link here.
What does your dad think? I doubt he would be happy to see this situation souring your relationship with your siblings. I can’t see any reasonable adult being proud or glad their daughter is going to battle with wedding invitations. Your love for him and loyalty is most likely what he appreciates most.
It’s your wedding and you can do what you please. If you don’t want them there that’s reasonable.
The man that is there for you and raised should not be demoted for something out of his control. It’s fair that they want to contact their biological father and it’s fair if they still want a relationship with their mother but to treat the man who raised them with such disrespect is nasty. And if your mother and father get divorced does that mean he’s no longer even be stepgrampa? Unthinkable.
If your half brother and sister take offence to the fact you called them as such, then they should understand why your dad is so hurt by being called stepdad.
NTA. And their hypocrisy is outrageous. You’re still their sister because you were raised together. But the man who raised you for two decades under the impression that he’s your father ***isn’t*** their father?
Do they not even see how inconsistent and unfair they’re being?
I’m guessing their magnanimous attitude toward their mother is due to the fact that they favor her over your dad.
I feel so sorry for your dad! Imagine finding out after all that time that your children aren’t biologically yours. And as if that isn’t bad enough, have those children that you raised and loved completely toss you aside.
I agree with you! It takes more than biology to be someone’s dad. And if the lack of a blood relationship means he is no longer their father, that by extension means you are no longer their “real” sibling.
I would completely cut them off.
But didn’t your dad raise them their whole lives? And they’ve just dismissed everything he’s done because your mum lied.
Essentially it’s your wedding you can invite & disinvite who you want. NTA.
Outrageous that 20+ years of sacrifices and love can be thrown away, and the love given to a guy who didn’t do anything except fuck a married woman.
NTA
Funny how the siblings are hurt that you don’t see them as “real” siblings anymore when that’s exactly what they’ve done to the father that raised them.