Hi JB, although, honestly, I think your marriage is doomed by alcohol, I can also see you've got a reasonable grip on the situation for now, and not many illusions about where you're heading.
I do worry about him saying he will never let divorce happen. Is that meant in the way of a threat, or does he mean he will control his behaviour? I was also wondering about whether you're involving your family in any way? You've said previously that they were getting pretty annoyed with you.
Just wishing you well as you let things play out. I admire that you're receptive to the posts here while still going your own way.