@Iris10000 I would tell your NVDH that things are going to change. It doesn't matter that you make more than he does. He takes up 1/2 of the house, 1/2 of the adult food, utilities, etc., yet does not do even close to 1/2 of the home and child upkeep; so from now on, he has to contribute to 50% of the bills, not a measly 35%. He isn't happy? He can go out and get a better job or a P/T job on top of his other. Since he is not contributing to 50% of the house and childcare, he should not be allowed to keep money for himself.
If jobs, administration, childcare, etc. were 50/50, or if he did more, I can see where it would be set up 65% from you and 35% from him. But, he doesn't do that. He's "tired" in the evening. And when you work? You should be "more tired" since you bring in more money.
He is taking the piss, he has been taking the piss for a long time, and it's long past time for it to stop. If he wants to continue on his old ways, let him know that he is in danger of being made redundant.