I'm not sure what the answer is for you. I'm sure that somebody here has gone though this. I will say that if you are intimidated/terrified of him then this needs to be addressed for you and for your children.

I divorced years ago and I didn't think I could survive single, especially financially. I struggle but better alone than with him. He was emotionally controlling but I was never terrified of him.

Keep posting and letting us know what's going on. Hugs to you!