Hm. I guess my next question is, how long are you going to wait to see real changes? And I don't ask that to suggest it has to be any time soon, but if it really is recovery or divorce, then you should know for yourself how long you're going to give him. It seems like the current situation could otherwise go on indefinitely.
As far as mixed signals...your signal is clear: you don't want him living there. Everything else seems to be fair game, right? If he is content with the current arrangement, I am not sure what is going to happen that makes him want to seek recovery. No judgment on any of it, but that is what it looks like based on your posts.