Easy divorce going bad

What I thought would be a quick uncontested divorce is going down the drain. I decided to leave him after lots of emotional abuse, lying to me constantly, stealing money from me and lying about that. He has been making me pay all the bills, he only pays the att bill and even then I'd sometimes have to pay it because our phones would get shut off when he didn't pay. He has no explaination about where his money goes. We co own a house together, he has lived in it for over a year and not once helped with the mortgage. He'll claim he's going to help me, then never do it. He separated from me, texted me and said he was living with his grandmother for two weeks. He came back a week early unannounced. I finally told him I'm leaving. He said hurry up and serve papers so I can sign them. Then he changed his mind and begged me to take him back. I said no. He started harrasing me constantly blowing up my phone, then started demanding I get my phone on my own account so he doesn't have to pay for it. I told him sure, as soon as you start paying half the mortgage. He said he's not obligated to help pay it since he doesn't live here anymore. Then he accused me of cheating.