Welcome to PC. I'm so sorry your husband is making hurtful and possibly unwise choices.

Sadly there is little we can do when someone has made their choice except hope they might change their mind.

I do know a couple of people with long term mental health issues who live more happily apart from their spouses but still keep their relationship with them. I know that's little comfort in your situation.

I hope you can get more support here, maybe try the forum for partners and caregivers?
Partners of People & Caregivers Support - Forums at Psych Central

People here have helped me through some dark times and I hope you get as much encouragement from this community as I have.

❤️❤️ ❤️