pjplibra,
I dated someone that insisted he would change if I would commit and get married to him. Pretty much the same scenario, although He didn't drink as much, I felt brain washed by the 5th month. I don't know what I did, but I just shook him loose. I realized I didn't love him, and that I deserved so much better. I found help online on sites about abusive relationships, I think that's what made me realize I was being tortured in a pretty bad way. I use to say I would rather take a beating then take the mental and verbal abuse he was dishing out....and then I realized that those verbal and mental abuse would soon turn into the beatings....so I quit before it happened. You have plenty of support here.
Cowgirl