help :(

my boyfriend has been somewhat mean to me, but on Saturday night he got so furious with me and was raising his voice at me in a bar parking lot in Newport Kentucky (a dangerous area) at 11:30 pm and when I tried to walk away from him he grabbed me really hard and wouldn't let me. then when he tried to leave I sat on his car and wasn't letting him (he was drunk, I didn't want him driving) and my grabbed my shoulders and pushed me out of his way. I guess people saw that and called the police, but they didn't show up until later. finally he just left me in that area by myself. the police showed up shortly after he left and asking me questions about everything that had happened. when I called him, he didn't believe me. the police let me stay in the car until I got someone to come pick me up. I'm 17 and he's about to be 22. I've felt so sick to my stomach since then, and I can't talk to my mom because I wasn't supposed to contact him in the first place. despite everything that has happened the only thing I want to do is talk to him even though I know that's a horrible idea. but I just don't feel myself right now and I just need advice from anyone on wtf to do with my life :(