AITA for exposing the real reason my sister and her bf broke up?

A Redditor shares a family conflict after exposing the real reason behind their sister’s breakup with her boyfriend. When the sister publicly accused her ex of cheating, the Redditor—having learned the truth from the ex and with his permission—shared proof that the breakup was actually due to the sister’s reaction to his bis*xuality. The fallout led to backlash from family and friends. Was the Redditor justified in defending the ex, or should they have stayed out of it? Read the full story below.

‘ AITA for exposing the real reason my sister and her bf broke up?’

My sister (cas) 25f and her boyfriend (jon) of 3 years 24m broke up last week, I’m good friends with jon and we chat in a discord server often. I assumed it was a mutual breakup and so asked Jon if he was doing ok, he then asked me if I knew the reason they broke up. I said no and he explained that it was because he was bis*xual, he even showed me screenshots where it showed how h**ophobic my sister is, I was shocked and apologized to him.

the next day I was scrolling through Facebook and noticed my sister had made a post about the breakup, turns out she is claiming that he cheated on her. she must of blocked him so he could not show the actual truth. With Jon’s permission I posted all the screenshots on my Facebook page.

it caused my parents to call me and tell me I have to take the post down as my sister has had over 30 people unfriend her, I’ve also had messages from my sister that where not so nice. my mum has told me that I’m now ruining my sisters life.. AITA?.

Here’s what people had to say to OP:

PasteTasteGood −  NTA. Your sister wanted to give him a bad name. It’s simple as that. My mum has told me that I’m now ruining my sisters life. It seems your mum is okay with the fact that she made h**ophobic comments towards her own bf (at the time) and then willingly slander his name. I’ve also had messages from my sister that where not so nice. From this, it seems she is mad her plan to make him look like the bad guy failed. Happy Pride Month Jon, if he sees this.

FSUalumni −  NTA, but you’re going to have trouble dealing with your family, who seems to be going with the “blood is thicker than water” approach. The only question I have is whether all the things stated could be true; he could be bis*xual, she could be h**ophobic, and he could have cheated on her. In that case, it’d be ESH. It might have been worthwhile to confront your sister before exposing her.

-strawberry-smiggles −  ESH. How do you know that Jon didn’t cheat on your sister? Why does he get the benefit of the doubt? Also, if you actually cared about your sister, you should have sat down with her and had a discussion about her homophobia. Maybe actually try to change her mind. Instead, you went out of your way to publicly humiliate her. It definitely sounds like there is more to this story and y’all need therapy.

BooteBoote −  INFO. Can you say for sure that her hate doesnt come from him cheating?

[Reddit User] −  YTA. How do you know Jon didn’t cheat? Why is it not ok for your sister to not want to be with a bi person? My last two partners have been and I could tell they were nervous about how I’d react, but I didn’t have to be ok with it. I’m curious as to what these h**ophobic messages were exactly. I have an extremely hard time believing your sister got THAT upset about him liking guys and girls. There has to be more to this story and you’re a huge ass for not getting both sides and publicly shaming your family.

Edit: I can’t believe people are really delusional enough to think that not being attracted to someone’s sexuality makes you a bigot. This is the single most infuriating aspect of the lgbt community. How the f**k is it not ok for a girl or guy to not like that I’m bi? I’ve even had gay men say they’re MORE attracted to me because I’m bi rather than gay. Does that make them h**ophobic too then…?

Mr_Mackey-mvoyez −  YTA. There is no need for facebook posts, talk to your sister about it, find out her version. Try to talk some sense into her regarding her h**ophobic behavior. If you still feel for jon then explain his side to her for her to understand. If she did lie on her post make her take it back threatening to do what you did. There are many step you could have done in private instead of going strait to posting something without having all the infomation.

Hoticestone −  ESH You should have talked to her before putting the screenshots up. She atleast deserved a chance tell her sid of the story knowing that you have this info. Her post was a dickmove tho, but so was your posting the screenshots without any warnings. Jon’s cool tho!

FumingStar −  You mad? Definitely NTA. She knew what she was getting into when she lied, you did the right thing.

BrownEyedQueen1982 −  YTA. The break up is between the 2 of them. Stop storing the pot and stay out of it. Whatever happened is between the two of them.