The first thing your H needs to learn how to do and practice regularly is to express things as a positive
Negative : "You don't make enough money" Positive : "I would enjoy it if the household had more income - how can I help?"
etc
Another point of him staying is FT. You could push for that. Tell him outright that if he's going to stay and explore repairing the damage you BOTH have done that he should be going to FT once a week.
