Welcome to SR
I think you already have some pretty major doubts there angelhd.
The older I get the #1 rule for me, in any relationship - alcoholic or not - is don't expect to change anyone...
your bf may indeed decide to change...but I don't believe you can count on that.
If you don't like what you've got, right now, in this relationship, I think you need to look at that and think long and hard about your decisions.
You'll find a lot of opinions and support here
D