oy, multiple issues at play here! first and foremost, you are not THERE to be the focus of his abuse, anger, resentment because HE has a drinking problem! he is treating you with complete disrespect, which at least IMHO, is Unacceptable. second, he's not quitting as a means to a better life, he's putting himself on restriction and making everyone pay for it. and third, drinking "non" alcohol beer by the caseful is not helping, it's like poking the hibernating beer with a stick....non-alcohol beer DOES have trace amounts of alcohol in it and it triggers the "oooo beer!" response, only a good drunk never comes. NO WONDER HE'S PISSED.
i'm sorry, it doesn't sound at all good for you. or the kids. if this is as good as it gets....is it good enough?