Ladies, I need some advise.. pls be kind 🄺 should I let it go??? Or?? *long post*

Ok ...a little background...

so my fiancĆ© and I have been together for a little over 4 1/2 years. Since his sister passed he’s had a tough time with his drinking. He hates to admit that but he has before.. he drank Almost everyday for two years and heavily some nights and not other nights for about 8 months.

He becomes a monster when he drinks to the point where he’s drunk.. he says things he doesn’t mean, he doesn’t even understand what he’s saying he just says things to be mean and he gets super offended by any opinion, just not fun. So we got in a big fight and he always agreed not to drink and drive after a car accident drinking.. so one night we’re at his grandpas house and he’s drinking a lot and fast.. he got drunk pretty quickly and he refused to drink water.. then goes to say he’s leaving? He drove off drunk and I told him we were done and I was over it. He actually ended up driving to his best friends right down the road less than 2 miles and he drove him home but he never told me this till be was ALREADY home. I still was done and said I can’t be around his drinking anymore.. He promised me he would stop drinking and he has for the last 3 months. We agreed that his drinking was toxic to us.

Fast forward to tonight...

He told me he was with a friend.. B. A terrible influence and overall shitty friend. My fiancĆ© doesn’t even like him!! Wtf I have that he hangs out with a negative person because he feels bad for them.. he has no friends.. anyways they go out for lunch and I was like ā€œdid you guys drinkā€ he says Yes... 2 drinks. 😳 like what? He was doing so great and didn’t even talk to me about it. He had the audacity to say he didn’t talk to me about wanting to drink that day because how I’d react like I always did before.. because he NEVER stopped drinking. But now he has so I would have reacted different.. I like to think so at least?? He’s proven I can trust him he last few months and kept great communication(he wasn’t the best at) but then makes me feel like I’m the monster somehow.. now he’s with a friend at a bar and I told him if he comes home drunk or gets drunk to the point where he can’t drive, I’m done because I can’t be with that person anymore.. he’s proven he can change and now this I just don’t understand .. why go backwards? why let me get upset because you went behind my back but you’re scared of telling me how you feel? I don’t feel like that’s fair to me.. I didn’t even get a chance to talk to him..