Sorry, I guess it was your phrasing that confused me. However, I don't know how my advice is based on an unrealistic view of relationships, please enlighten me. My husband & I went to different colleges and I have a group of guy friends that he barely knows- the men's xc team where I was. But when I see any of them now, he's always invited along and introduced to anyone he doesn't know and it's no problem between us. I'd be seriously pissed if he wanted me to end my friendship with them just because they're of the opposite sex. I think what's unrealistic is to expect a person to give up any of their friends in order to be in a relationship with you. (And if your gf is encouraging a guy "friend's" advances on her when you're not around, don't have her get rid of the friend, you get rid of the girl!)