Drinking problems

My boyfriend loves to party just like everyone else, but he takes it to the extreme. I mean he can put down a whole twenty-four pack of beer to himself. It's rather sad actually to watch him do this. So one day, I took action and I told him that this bothered me. He respected my feelings and decided that he would cut down. So that took affect for a little while until I didn't go with him to one party, I found out that he drank four different kinds of alcohol that night and was completely trashed. Then he decided to call me and ask for a ride home because his ride was too drunk to drive. I picked him up and confronted him about my feelings towards his abuse and he totally blew up in my face and told me to stop controlling him. He says that he has problems and he needs the alcohol to make him feel better, this is obviously the alcoholics mentality. So I told him to chose alcohol or to chose me, he told me he would not make this relationship conditional so he chose to drink a little bit but not as much. He's doing better at it and it's not bad at all anymore. He rarely drinks and when he does, he keeps it to a minimum or four to six drinks. Although watching him drink makes me feel really jealous, like he's choosing alcohol instead of being with me, is this normal?