I've only ever dated one other person prior to this and it was a long term relationship. I'd broken up with my girlfriend over something I'd heard a week prior to this incident. Me and this girl were technically not together but we were talking; I guess shed gone out this night and went to a frat party. At this frat party she made out with a guy got drunk and I guess he took her to a bathroom to do his business; he sucked on her boobs and gave her hickies, that's all she told me happened. Apparently her friend had stopped the situation from escalting and my girl spent the night at her apartment, she text me the next morning feeling terrible. All she told me was that she kissed, got hickies and that was it but I'd later heard she got ate out. What type of friend stops a technically single friend from getting dick? This is cheating right? I have little relationship experience but this is cheating right? She probably fucked him that night, right?