Psychopath went too far.. help please.

I made a huge mistake and saw the psychopath the other night. I drunkenly hooked up with somebody else the other night.. because the psychopath hadnt made time to see me in months yet still wanted to talk to me every single day. And the day after I hooked up with someone else he made an effort to come over.. extremely upset about the fact that I was with someone else. He was "disgusted" and wanted to know EVERY single detail of what happened i.e "where was I? was I on a bed? on a couch? where did he cum? on your back? your tits? your face?" then told me if I didnt tell him EXACTLY what happened between me and this other guy he would "never ever talk to me again" and if "i was gonna act like a slut I needed to tell him what a slut does"

I should have told him to turn the fucking car around when I got a text from him telling me to "wear something sexy because I was going to be making it up to him HARD"

He comes over, things started out ok. We started messing around and I gave him head. All of a sudden out of nowhere he whips out his cell phone camera and starts RECORDING me. I immediately stopped and I was like 'woah what are you doing!?" and hes like "come on please!? it will be so hot blah blah blah" I still said no. So all of a sudden he holds me down, slapped me in the face, choked me, and told me to never ever say no to him and that I was going to take the video. I was REALLY REALLY scared.. like to my core.. so I let him take the video. Afterwards he kept calling me a good girl and told me that "now I got a kiss."

We were laying in bed cuddling after the whole thing when all the sudden the conversation changes to KILLING PEOPLE? He starts going on and on about how he knew how to hide a body and not get caught.. "first you dig down 9 feet.. fill it with dirt 3 feet.. then put a dead animal like a dog.. then fill the rest up. So if the police dogs find a smell it will be the dead animal." I was starting to get REALLY really scared and he knew it because I was like "you're scaring me!" He was like "if you were going to kill someone how would you do it?" and i was like "umm.. ive never thought about that before what the hell!?!" and he was smiling so big and he was like if I was going to kill you i'd go like this: and he started choking me really hard and I was really upset. And then he goes "no actually.. i would do it like THIS so it wouldnt leave any marks" and then starts choking me with his arm. Then he goes "itd be perfect, your twitter is up on your computer and i'd write something like 'goodbye sweet world!' or something you'd say.. and make it look like you did it yourself. All of a sudden I feel his BONER. He definitely got a boner from choking me and scaring me. When we were kissing and he was on top of me he grabbed me by the throat so hard and said "does it turn you on to know that i could kill you RIGHT NOW if I wanted to."

We hooked up again.. and he told me he wanted to put it in my ass. I told him no and he did the same thing as before.. he kept slapping me and choking me and telling me NEVER to say no to him and just because I said no he was going to do it. I had my period so he told me I had 2 choices: 1 was to let him have sex with me and give him head afterwards (GROSS) or let him put it in my ass. I told him I didnt want either and obviously this angered him and he flipped me over and tried to put it in and I was seriously like "stop, please dont hurt me!" He eventually turned super sweet and was like don't worry baby I like you too much to ever hurt you its okay.

He took more videos of me and then kept being SO sweet to me and telling me that "i was so good to him" and told me that I was "perfect" He ended the night putting on the song "i'm forever yours faithfully" and belting it at the top of his lungs just super casually. He put on a couple more journey songs and actually let out a TEAR and was like "these songs make me so happy on the worst days!" IT WAS ALL JUST SO BIZARRE!! He also works at a daycare and told me a story about how this bratty 14 year old kept kicking all the kids in the back of the legs so the psychopath grabbed him under the arm in a monkey bite and held it for an extended period of time and was like NEVER EVER DO THAT AGAIN DO YOU UNDERSTAND ME? I was SHOCKED I was like no.. did you seriously do that to a kid at work!? And he flatly was like "well he never did it again did he?"

Then the next morning we woke up and I get a facebook chat from him saying that he just thinks its better that we're friends because he doesnt want a girlfriend and if he hooked up with me it would just be stringing me along and he didnt want to do that. He said he wouldnt care if I hooked up with anyone else.. when the DAY BEFORE HE WAS LIVID. When I said there was NEVER ANY WAY IN A BILLION YEARS i would be his friend he was shocked and just "couldnt believe I would chose to not have him in my life over him being in it." I told him that I was coming to his house to delete the videos off his phone and he claimed that he had "already deleted them anyways. He didnt want porn on his phone even though it was hot in the moment."

At this point, i'm still very shocked. More in denial that this all got to this point. I always knew he was crazy and a narcissist, but not THIS crazy. I almost don't know what to do. When I told him to never show the videos to anyone when he was at my house he told me he never would and then casually said "ha .. unless you defriend me again or something.. just kidding!" But now its like OMG he has these videos of me, hes blatantly unstable, he's talked about killing people..

I feel like I can't talk to anyone about this.. not even my closest friends its so embarrassing but I need help, please. I'm so sorry to all of you who tried to give me a slap in the face a couple weeks ago when I posted.. for some reason I almost feel like i had to see him one last time. Now i'm kind of at the point where i'm like.. if I stop talking to him is he going to hurt me? What should I do?