It's your life and you are, of course, free to do whatever you want, but...where you are and what you are doing is a million times better than marrying and having children with an alcoholic. He is nowhere near ready to even consider those things. He needs AT LEAST a year of good solid recovery under his belt before he should even begin to think of those things. And you should demand AT LEAST that much and probably more since you already know what life is like with him when he drinks.
Spend this time working on your own issues. Make improvements in your own situation, which is really the only thing you have any control over anyway. If you are happy with your life, what he offers, along with what you already know, won't look so attractive. No one can make us happy except ourselves.