You stated you are letting it go because you are proud he hasn't drank in 2 weeks.. but is there really much to be proud of? He is still the same guy he was..he is acting out, not being a good father to your children, not showing you any respect, verbally and emotionally abusing you, blaming you for him not being able to drink, etc. He hasn't taken any steps towards recovery and life is just as bad as it was when he was drinking.
We always hope that when our loved ones stop drinking they will go back to the person we loved before the addiction occurred. Unfortunately, it is not that simple. Just because he isn't drinking doesn't mean that man will come back, in fact, that man may never come back. His whole outlook on life is different, he has no motivation, he is miserable, all he wants is alcohol and now he blames you and his family for taking away his one love, and he is now chugging non-alcoholic beer because he just can't stand the thought of being sober. Unfortunately, the problem isn't really alcohol or drugs with our loved ones..it is all the other problems that drinking covers up. He is an empty shell and he is only going to get more and more angry the longer he goes without a drink until he decides to actually work a program of recovery.
You do not deserve to be treated this way and your children do not deserve to be in a house where this is going on. You stated that if this is as good as it gets then this is not good enough, so knowing that, it might be time to think about what you want for your future and what it will take to get there. I'm not trying to say you need to do something now, I am just saying maybe it would help to think about what would make you happy/fulfilled and what you want for your children.