My girlfriend and i just broke up. Please help.....?

Well i am 27 i dont have a job, i live with my dad. Im broke and im feeling like killing my self. We where to get married on july 7,2008. Well i neglected to tell her about some past due bills that have been floating around me. She found out and called off the wedding. Now reguardless of how i word this first and foremost it was wrong. But she is the type of person that cannot handle stress in no way shape or form. Just recent we had a huge fight that she slapped and punched me twice in the face. In anger i slammed her to the ground and also broke a wall. I removed her from the home. I called the police in which i was arrested for a bad check that i didnt know about. I have tried to kill my self and have lost a baby with this woman. When its good its good. But when its bad its very bad in our relationship. Should i just do this and go on or stay and try to make it work. I love her with all my heart, but there are some deep issuses here that have to be addressed. Jesse