just reported my soon to be ex BF to the cops....

So my anxiety is skyrocketing right now....I reported him earlier today because of what happened on Friday...long story here we go....

Well we got into this huge fight. We were getting ready to take our friend truck back to him and it was getting late but he wanted to have sex. I was ok with it, but like I said it was getting late and I told him we could when we got home. So he started sulking and shit then we left to unload the truck at a house of my ex's that needs fixed up then he wanted to go around to more thrift stores and check shit out that they are getting rid of or throwing away. I was like ok. So we get to goodwill and there's this washer and dryer put back and he asked if i wanted it to try and sell for like $100. I was like nah cuz if it's out here it's probably broken and shit and I didn't wanna lift anything else. So he drives out of the parking lot all fast and shit and leaves me behind and I'm trying to catch up with him then when I do he disappears again and I'm pretty annoyed cuz it's getting late and Aiden ( our 3 yr old boy) hadn't eaten yet. So I find him at a gas station near where we were and I told him if he didn't stop doing that I was going to just go home....and he was all like fine fucking go home then. So I'm like k I will. So I start driving home and he drives up behind me and starts tailgating me bad. Then he bumps the car with the truck! While Aiden is in the back! Which then seriously pisses me off. So he still driving super close to me then when I get ready to turn to go home He almost clips the side of the fucking car. I get home go upstairs to use the bathroom then go downstairs and see him on the couch. I'm like fuck this I'm not talking to him. So I go upstairs and he starts stomping up the stairs after me. I tell him to go away and he follows me I to the bedroom closes the door and says I really wanna smack the shit out of you and I said you told me to go home then you hit the car with our son in it, then he fucking hits me! So I start telling at him to get the fuck out of my apartment and shit and he's all no so I told him if he didn't I was going to call the cops then he says he would tie me up and throw me in the bathtub so I don't call them. Then he says if i did he would create a fucking hostage situation to ensure the cops shoot him....so I've been up at my parents for the past few days or so....I'm scared if he goes and does time ,he's going to hate me and blame me for him and our son having a bad or no relationship at all....