Yikes! It doesn’t matter whether it’s never happened before. He became physically abusive and violent towards you and threatened your life. You must leave him. Please get yourself alternative housing and leave this man ASAP. You are in danger. I would not take this incident lightly whatsoever or even believe it won’t happen again. Him threatening your life should be taken most seriously. I would call the police and file a report of abuse and danger to your life and get a court ordered restraint on him. Please do not go back to your home. This is most serious.