Definition: Given a real-life anecdote of a complex ethical situation, generate a suitable title that describes the main event/root cause of the situation. Imagine that the given text is a social media post, and you have to write the title of the post, so the users can decide to read the main text or not.
Input: Some context: 

In December, a bunch of us went on a night out for my coursemate's 21st birthday. After a great night, I ask if two of the three friends in this group want to go back to theirs or mine (they both live together) and play Mariokart. One girl (A) invites me back and the other girl (B) is fine with it, but puts herself to bed as soon as we get back. 

After talking on the couch for hours with A, and me lowkey confessing to having a crush, I then say that I'm ready to settle and sleep. She joins me on the couch, we make out, it's great. B kind of guessed what happened after seeing us on the couch together in the morning. 

We both go home for Christmas and I spend most of my time talking to A, and the feelings don't go away. However, I tell A that if B is uncomfortable with this, I will stop trying to make it work. A tells me it will all be okay and to not worry. 

A comes back to our uni town a day before B, so I stay over after watching movies and catching up, and eventually we fully hook up. B knows I was there the night before, but we haven't told her I stayed over in fear of her getting mad. She started being rude to A after this night, because A wasn't messaging her on command. 

A has been spending more time with me, as there is a cycle of B getting angry, A getting stressed and leaving the house, meeting me and often sleeping over. B has spent the past two weeks trying to shift the blame onto A for this, saying that she feels lonely because we hang out as a duo more. I've tried my best to organise things to do as a group (with our other friend (C) too) but she has cancelled all plans suggested as she feels awkward hanging around with us. 

I invited B to my house last Wednesday and essentially told some stuff that reflects on my actions for being secretive after she told me that she feels like she's being treated like an idiot for A and I not being explicit in what we are doing. I think things will return back to normal. 

They won't. 

B won't talk to me or even look at me. If A mentions my name, she gets defensive and acts rude to A or myself. She only talks when I'm not a part of the conversation. She barely let's A leave the house to hang out with me, and sends cruel messages to A if she's not home by a certain time. Myself, A and C have all tried to talk to B about this, and B has admitted that it's a conscious decision to be rude, telling A that she doesn't like seeing us together because it makes her feel lonely, and that she wants A to spend more time with her again. I told her multiple times if she wasn't comfortable I would stop coming onto A, but B hasn't said anything until last night, to which neither myself nor A want to stop seeing each other. But it's hurting our whole friendship group, we can't walk around as a group and I'm either silent in conversation or B refuses to hang out with us. 

AITA for wanting to continue to see the person I like, knowing that it is hurting our other best friend and there is a real possibility it'll tear our friendship group apart? 



TL;DR: Me and a friend started seeing each other, our other friend is really unhappy about it and won't talk to me. 

potentially ruining my friendship group because of dating one of my friends