am I overthinking it ?

me & my SO have been on and off since freshmen year currently a senior. today we were quote on quote playing fighting but he threw me into the car , bit me , mushed me in the floor , kicked me , whatever you think of he did. now to cry in front of him , i would never cause then I'll never hear the end of him making fun of it so I waited till I pulled off. he didn't even bother to walk me to my car. & was even to the point where a stranger came & was ready to fight him but he knew the guy so he let it be. it's one thing to play fight but this today idk. I honestly don't know how to react .. advice ?