I was going to say the same thing as Santa - but I also don't think that he's really given you ANY indication that he intends to quit drinking forever so I think this is a conversation you may be having over & over again. I expect you'll be negotiating this again much sooner than March because he's laying the groundwork for relapse before actually getting fully sober.
With merely 2 weeks sans alcohol & his ongoing weed issue there's nothing to base any expectations on except for past behaviors. You say, "he was belligerent on past trips but nothing too bad" & I can't help but think, that's NOT a "normal" reaction. "Not too belligerent" is not at all the same as "Decent" or "Kind".
I think YOUR recovery needs to be top priority right now & I hope it helps provide you with some perspective about all of this.
