You are a smart lady!
Originally Posted by
michellec 
and he says that if we lived together, he would have no desire to drink (which I don't buy).
His statement, I think, is a form of manipulation. He is making you responsible for his drinking or not drinking. As he continues to drink, he wants you to feel guilty for his continued drinking ~ because you did not move in.
I can see you aren't buying this form of manipulation. Good on you!