I hate the idea of leaving him to struggle through with this alone because it's too hard on me. I want to stand with him on this, I just keep thinking if only he had never broken up with me. We could be working through this together now. Then I wish he had never come back, because I'd be moving on by now. 
He can make me feel so unwanted but then, on the good days, he is perfect to me and I know he can get through this.