leave. i can almost promise you this drinking problem will get out of hand one day and he will seriuosly hurt you. this situation can get dangerous unless you end it right now. tell him that if he acutally loves you, he has to quit drinkingg. if he doesnt, dump him asap.
hun, thats abuse and you need to leave him before he does something more... if you really love him you need to tell someone like his family so they can get him help so it doesnt do it to other people... trust me...