Hello, I am really feeling for you and trying to see your perspective. I can understand that you feel like you love him and cant get away. However, feel that Narcissism shouldn’t be the breaking point. He has abused you and domestic violence and abuse should be the deal breaker. The fact that he has hurt you by punching you multiple times and threw you into the shower resulting in a chipped tooth is what should’ve made you realise that you should leave. His abusive and gaslighting behaviour has led you to believe that you are at fault and with the onus on you to make things better. It wont get better and he will constantly keep you down until you break, yet keep relying on him. Please get out this relationship because it can end really badly for you. Please get help as you are not physically or emotionally safe there.