Mighty....
Let go or be dragged, girlfriend. I totally understand how difficult it is to turn off the concern for a long time spouse. You spent so much of your life looking out for him and his wellbeing.

But he fired you from that job. And more than that, he had the opportunity to come home, and he still chose to go back there instead.

He's not your responsibility any more. Perhaps this tough road is just the path he has to walk. You need to keep the focus on creating a fabulous new life for yourself and your kids.