I know this story isnt different from pretty much any other alcoholics family members.
I'm actually pretty sure most of the stories are all very unique..
So he's still in AA? But drinking? Did he cross the boundary you set allowing him to live there? Or has he moved out since he busted your rules?
The rest sounds like drama that doesn't involve you (nor should his drinking or decisions about sobriety, but he is in your house.. so I get that part).
I don't have advice for you, but other folks will be around with great words
