Active alcoholics will do anything, give up anything or anyone to protect their addiction to alcohol. Love means nothing to an active alcoholic. They are not capable of true intimacy. It is a fantasy to think they are.
Read the stickies here, and I also found reading the AA big book very enlightening.
I know it hurts, I have been there...but it gets better if you focus on yourself. Leave him to his HP, and trust that if you take care of yourself, good things will follow.