Does it ever get better?

So long story short I’ve been in an mentally,physically,emotionally and verbally abusive relationship for 2.5 years! I also suffer from severe depression,fibromyalgia and borderline lupus diagnosis ... so with that being said my mental is all over the place constantly! Things have been “ok” lately. He’s trying to get his act together as I left for about a month and came back after a death in his family but I didn’t move my things in. I have a few clothes here and I go back and forth to my moms. But with that being said do you ever stop thinking about the things that happened in the past or is the damage so great that I should walk away! He’s actually been ok and I’m the one that’s not ok. Should I just be walking away at this point ?