It's what I am. I suppose one would call that a functional alcoholic 
I live with roommates who were (only now realizing this) drinking buddies. I've tried to coast them into a healthier lifestyle, but it just ain't gonna fly. I've known these people for almost my entire life, and it's seeming more and more as such that I need to cut ties most likely. Obviously I'm not doing that until I move out. But, what are some approaches of others who were in a similar predicament?