So my boyfriend of three years is good friends with a guy that I seriously do not like; all he likes to do is drink. He has a long-distance girlfriend but has cheated on her and is just not a person I would ever associate with. What's worse is that he seems to disrespect the fact that I even exist! He asks my boyfriend to go out drinking with him and even when my boyfriend says he has plans with me, he totally talks him out of it.
I understand it's his friend and it's not my business, but how should I approach this? We hung out once or twice before and I cannot stand the guy. I feel that he is a "bad influence" on my boyfriend and I hate when they go out alone without me because he is such a scumbag. Help!!