Anxiety

Consider this…is he (or fear of losing him) contributing to your anxiety? I feel my husband (now ex husband) contributed to my anxiety. I wasn’t good enough, pretty enough, on and on. Expectations kept growing to the point of impossible. When we divorced, I was in a dark place. Felt like a failure. I will feel you that it was one of the best things that happened to me. I found myself again. I still have anxiety and panic but live for myself.
You have people on this forum, friends and counselors that can help. You’ll get through anything and likely be better for it.

Amen to that. Consider your options.

And talk to a lawyer to KNOW your options, esp. if finances are a concern.

There are lots of good people out there; don't waste your time
on someone who doesn't deserve you.