OK, an update after BF has had 3 straight weeks of AF.
So far staying dry seems to be coming really easy to him. He says that as long as I don't drink around him or ever smell of booze, he doesn't forsee a problem. We went to a street fair where everyone was drinking and partying over the weekend, and he had no desire to join in. Then a few days ago we went to Blackhawk and gambled a bit, wandering in and out of casinos/bars. He said there was a moment when it felt natural to sit at the bar and start in, but it only lasted a moment. So hopefully it continues to be easy for him. His body certainly can't take it if he decides to start in with the everyday drinking again, and after all this I don't think I can take it either. But so far so good.
We've done more fun stuff together in the past 3 weeks than we have in probably the last year. Funny how easy it is to get out of the house and socialize when you're not passed out or incoherent most of the time, huh?

He's starting to loose the booze gut in a big way and all the jaundice is almost gone - there is just a very slight yellow tint lingering in his eyes.
Thankfully since he is unemployed he qualified for a government medical program for the hospital bills. Without that, his stay would have rung in at over $100k!!!
My only worry now is that he's acting a bit weird and standoffish. I know that he's just trying to think to himself and learn how to do things without drinking all the time. It does make me wonder though if he is still into being with me in the cold, sober light of day.

I guess time will tell.