So sorry for what brings you here.
I'm the alcoholic in my relationship. I don't know if talking to me did any good. I defended my drinking until
I decided it was time to quit...and it wasn't because of a discussion someone had with me.
I'm not saying don't have a discussion, I just can't offer you a strategy to make it successful. But as the A I can tell you this: don't listen to what he says he's going to do. Watch what he does. Action over words and promises.
We have a forum for family of alcoholics.
Friends and Family of Alcoholics - SoberRecovery : Alcoholism Drug Addiction Help and Information
Feel free to pop over there. Maybe someone's post will strike a cord with you. You surely aren't alone here with your troubles.