I'm working on it. there is a cultural aspect to it, and religious. We are Catholic, and I come from a very traditional background. Also my older sister has been divorced twice and it greatly impacted her children, as it did my cousins when my uncle and aunt divorced. I guess I put their home stability and financial comfort above my happiness (I would struggle to keep this house on my income alone). This past year it's really hit home that one is already out of the house and the other will be eventually. I plan on leaving him next summer, at the end of the school year, since my children are already struggling because of social isolation. I don't want to do it while we're all working from home and schooling from home.
Good luck to you, it sounds like your husband is trying, I hope it is real.