Yes, I agree as well.
I actually said "OH" out loud when I read this:
He said that perhaps if we could spend more time together, maybe it would help him to change or improve his behaviour - explaining this that he drinks because he feels alone and being a failure in his life.
You have been together several years, has there been any improvement? You upped-sticks and moved to the town you didn't even want to move to, has that changed anything?
Now this:
I want to believe that this time it will be different because of that stupid Christmas calendar
I guess it was him trying to make a nice gesture but that wasn't the problem anyway? The problem is his alcoholism (mostly) and you don't want to live with an alcoholic? So nothing has changed? He will continue to drink, as he said.