Abusive

My bf and I of 10 months are abusive to each other and we fight all the time and sometimes for no apparent reason just cuz we're stubborn and don't understand each other emotionally and rationally. I'm 22 and he's 45. We're abusuve in every way to each other and I'm really hurt and don't understand why?! Well, tonight he came after me with a screw driver and threatened to kill me with aggression because we both were fighting and being abusive with each other and he thought that would scare me. He's controlling and denies it and I keep coming back to him but don't know what to do? He says everything is my fault and nothing is his fault. And we're constantly going at it! Should I report our abuse or continue to let it go? I'm hurt and don't know what to do because I Love  him and am scared to leave him.....he keeps hitting me and is telling me to stop hitting myself and I keep abusing him back and throwing his shit around at the house! Angry, Frustrated, Confused, Hurt, Sad, and I don't know what the damn to do??!!!