Mimi....I think you really are o n the right track. You have your focus on yourself....you are "enlightened" enough to stay inside your own hula hoop.
This keeps you safely disentangled from his internal battles.
If you could look inside his head--you would probably see an emotional tornado going on in there! A 24/7 war between his "alcoholic voice" and himself. I think he has performed a great drama this week---trying to prove (to himself) and you that he can control his drinking. After all, any recovering alcoholic will probably tell you that the fondest wish of the alcoholic is to be able to drink "normally"--like non-alcoholics.
Who knows what he really did this week
....maybe he did sip some on the side....maybe he did feel more miserable than he let you know...maybe, he even got hold of some drugs that quell withdrawl symptoms.....
But--you are right--it doesn't matter....not in the big picture.
He probably thinks that he has got this thing "licked".....and, proven you "wrong".
In the big picture...the Universe will inform him. He is best left to discover all that he needs to know on his own....
All the while...you stay safely out of firing range within you own program.....GOOD FOR YOU!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
dandylion