Oh, he understands your contribution, but he discounts it. The only value he sees is quantifiable by money, and nothing else matters. The idea that you add quality, not just to his life, but to the lives of his children, is irrelevant as it brings in no money. If you were to bill him for your services, he would simply look around to get those services more cheaply. He assumed 'wife' was cheapest option, and less trouble as wife would be there forever and he wouldn't have to worry about training up new staff etc.
He holds this view for the simple reason that it makes him more powerful. If the situation were reversed and you the earner, he the SAHD, then of course the most important contribution would be the qualitative one, and money provision would be irrelevant in comparison.
This is a man who has to win. Whatever the fight, he has to win, and there are no holds barred.
KOKO, Mo. Could you have your parents stay the week he's back? You could bunk up with one of the children. Don't know whether that's even worth thinking about.