you seem to be skipping over HOW this miraculous change all came about:
AH got arrested on Friday night, for driving on a suspended license
and upon release having no vehicle, wallet or keys, he asks to come to your place. he was therefore sort of at the mercy of your good graces and needed to be on his best behavior, because his options were otherwise limited.
curious, when he DID leave yesterday, AT YOUR REQUEST, to go to his apartment, how did he get in, if his keys were impounded? if he could get in yesterday, he COULD have got in after his release.
you are sending mixed messages. lots of them. come here, go away. and you are basing this newfound HOPE on seeing someone NOT DRINK for four whole days. after getting ARRESTED.