Name calling deserve it or still not okay?

So here's the thing. My boyfriend of 6 years will call me a a bitch or a fucking bitch when i try to argue with him or I yell at him about something. I know I can act like one and maybe sometimes deserve it but I feel like it needs to be toned down. If I tell him to stop calling me one he tells me to stop acting like one. Also when I get really mad at him I'll punch him in the arm or something like that and he'll get mad and punch my arm. I don't want to hear "oh break up with him" or anything I would just like to hear if name calling is normal and "sibling like fights" with whoever you're dating is normal.