If it were me, I would separate from him while he does his counselling or whatever form of recovery he is choosing. I suspect his decision to see a counsellor may have been motivated by you saying you were kicking him out, and not because he actually made a conscious decision that morning to stop drinking. He might just be doing what he thinks will keep him in the house. By living apart, he can prove himself and you can reunify in the future if the time is right. Otherwise, live apart and if he continues down this path at least you don't have to go down it with him. You can still be a supportive person for him - that is important for people in recovery - without living with him.