Seek a regular therapist. Not one together, but one for yourself.

I knew this was going to happen. I had hoped it wouldn't, but all the hope in the world can't save a marriage broken beyond the point of repair. I keep telling you what to do, but you refuse. I don't know what I can do to help you anymore but offer you the same old advice I always do and that is to seek out a lawyer to help you file for divorce so you can be free at last.