The fact that you have allowed yourself to be so used and abused by so many people tells me you have some profound emotional issues. If your mother is the type that will help you, maybe you should tell her you would like to see a professional. You are very clearly attracting the wrong sorts of guys, including the one you are with now. You need to stop the cycle of picking bad males before you get yourself beaten to death.
Relax... I'll need some information first. Just the basic facts - can you show me where it hurts?