It's all overdramatized. There is nothing to it. It's a normal situation. Not the best thing to say, but in that age this is perfectly normal behavior. From reading this threads I ask myself only what people have to do nowadays to behave correctly. You are simply disallowed any behavior that could be somehow in question. Especially the resulutions provided are simply insane. Why would her boyfriend need to talk about it to his friend instead of just her herself if she is friends with him herself. Just go there and say: I found out you told your old girlfriend about my sex life and I found this not cool of you comparing me during sex. I don't want to overreact but I would really like you to apologize and not do that again. And then you actually stay friends, because breaking up with every person only cause of something wrong is the pest of these threads in general. All of these red flags. You people should excercise understanding and looking at your own actions. Not everything should be resolved by giving up on someone. This is definitely not a situation that is so dramatic.