This is very sad and I really feel for you.
I can kind of relate because my ex boyfriend once told me he didnt think he could be with someone who never drank - it would be boring he said. I was semi half heartedly trying to deal with my problem at the time. My reaction to his comment set me back alot.
We have now split although we still see alot of each other. He wont commit to getting back together until I change. Ironic eh. Somehow once I have a few months sobriety and am back in some sort of shape and I HAVE changed - then perhaps I may not want his committment anymore.....
Hope you get through this, best of luck.
PS xx