What is the best way to tell my significant other that I Hate on of her friends and don´t want him in my house )

I seem to have a problem, one of my SOs friends is one of the very few persons I really, really hate. We are a very social couple and ask people over all the time, but alas one of her friends is a person I, in the correct definition of the word, hate.
Since he is a part of her network of friends he often tag along with other friends, witch in turn leaves me feeling that I either have to leave the room, since I feel the urge to actually use physical violence on the guy.
He knows my feelings about him, and still he comes, but he is an asshole so there is little I can do about him….
what dhould I do ? I do not wish to be a overcontolling jerk with my SO, but I dont want to feel excluded from my own home either…..