What dgillz said - you are going to need to relearn some things in order to protect yourself and your kids from the disease of alcoholism. One of which is to not believe the blamestorming. There is NOTHING, I repeat NOTHING, that you do to make this man lift a bottle to his lips and drink it down. Those are his choices. You are choosing divorce as a way to a better, chaos free life. Own your choices. Feel confident that you know what is best for you. Because you do.
Stay strong!
~T