So I'm on the fence about this one. Theres this girl. First time I met her (about three years ago) I was attracted to her, but found out she was one of my friends girlfriends at the time. Since then they've broken up and started to hate each other. He reportedly even said that she doesn't care who she sleeps with.
Flash forward to two weeks ago. I'm hanging out with the friend (who I see usually about 4 - 5 times a year) at this party and she shows up unexpectedly. They have an awkward reunion. Later I start talking to her, we get drunk. I go with her to my other friends place and we end up fooling around, sleeping together... no sex. In passing we kinda make plans to hang out again to watch a movie.
Word gets around to my friends that I hooked up with her, they're a bunch of chatty bastards but I figured they would keep it quiet because even though they do like to chat it up I figured they wouldn't want this friend to find out about it since even though he said he didn't care. I start to feel bad about the situation, but I figure hey... it's really none of their business and the friend who's ex it is hasn't found out.
Last night went to a different party (we're still trying to organize a time that would be good for both of us to hang out) and a friend of that friend showed up and started grilling me about this girl saying that my dick is gonna fall off and it was a drunken hookup thats the reason they haven't told her ex about me yet and shit. Apparently he went through this routine when another one of our friends hooked up with her too.
So now, I feel bad about it because even though he said that he doesn't care... he might. But it seems like this guy is being overprotective of his friend and since the friend doesn't know he's even saying this shit to me. If I put myself in the guys shoes, I don't think I would mind. I'm not looking for a relationship here.
So, should I go through with it? I've never really been in this kinda situation before. I'm not desperate or anything but I did have a good time with her the other night. If not, how should I break it to her? I'd rather not tell her that I don't want to see her again because it would upset her ex bf... thats not really fair to her is it? I'm in a moral dilemma here!
tl;dr - fooled around with a friends ex, he said he doesnt care but he might. Should I cut off contact with the girl?