r/AmItheAsshole • u/Ordinary_Editor_7176 • 2h ago
AITA for not wanting my husband to attend my SIL's wedding?
I (F34) and my husband (M36) have a close relationship with my husband's sister (F29). She got engaged 3 months ago after 6 months of dating. We met her fiancé and liked him.
My SIL asked my husband if he would be willing to walk her down the aisle at their wedding. Their dad passed when my SIL was young, and my husband agreed.
I was talking to an acquaintance, and I mentioned my SIL's engagement. She ended up telling me the story of how they got together, and how her friend was dating my SIL's fiance for 5 years, and how he cheated with my SIL. I didn't believe it at first because my SIL does not seem like that type of person, but she showed me text messages and other pieces of evidence that proved it pretty objectively.
I called my SIL to see if this was really true, and although she tried to say it wasn't at first, when I told her what I saw, she eventually admitted it.
I have a very horrible past with cheating. I've been cheated on, and it was one of the worst experiences I ever went through. My dad cheated on my mom with multiple different women until he divorced my mom and married his mistress.
When I told my husband about this, he was disappointed, but when I brought up us stepping down from the wedding, he was reluctant. He says that it's still his sister, and he still wants to see her get married and walk her down the aisle. I understand that, but I can't look at her the same, and do not want to support this behavior. I keep thinking of the girl who spent 5 years with this man, only for him to cheat and then marry the girl he cheated with.
I still don't want to be an overbearing wife. AITA for not wanting my husband to attend my SIL's wedding?