Should I bail my ex fiance out of jail?

I know this sounds stupid but I miss him. I had to put him in jail because of domestic violence. I've been letting it slide for months. A week before I put him in asked him to leave and he broke into my apartment and made me stay attached to his hip until he felt ured I wouldn't leave him. Than a week later he attacked me more aggressively than usual. He also said that if I left him he would kill me. which I doubt. He isn't the usual controlling psycho. He only gets like this when I nag about stuff that has to with my insecurity and talk about leaving him. I m not justifying it I am just saying. I miss him and feel lonely.. I could easily find someone else but I don't want anyone else we have been best friends for five years and I feel like it's somewhat my fault. I never thought I would be in the position where I would be on the other side sounding like the insecure bimbo who puts up with a man treating her badly. The cops said he was flipping out in jail and I looked up on the computer and it said he is set for 5000 bail because of bad behavior. I don't want to loose such a good friendship and a good guy (other than the abuse he is a good guy). I can't stop feeling so freaking depressed and suicidal. I don't know why all this bad stuff keeps happening in my life.