(very crazy story)What should I do in this situation? Trapped with feelings too? Tired of being chose over.

So since me and my ex broke up I've been really lonely and in need of affection. So yeah, I haven't had a legitimate​ relationship since him. I've just been sleeping around pretty much. Anyway long story short I met this guy a while back and we just started seeing each other and I finally had sex with him Friday night. Unprotected,not really knowing where we stand. So he basically said we just fuck with each other not really knowing what he meant by that and he just said relationships don't work out for him.. So yeah when we had sex we recorded it. On his phone. And he sent it to me. He then later on post part of the video on Facebook and thought I'd be okay with it because it was a small clip and he edited it black and white so I confronted him about it and he said he post the clip to put dirt on some girls name for starting something with one of his female friends and saying it was her instead of me if that makes sense so yeah. I forgave him, but I politely told him I didn't want anything to do with him anymore after that cause I didn't trust him. And he made me feel like I was over reacting. So now I feel like since he already post that then if I were to block him and everything he'd post the whole thing and I feel forced to have something to do with him anyway So recently today I discovered that I do have some sort of feelings there cause he told me relationships didn't really work out for him but recently post on facebook saying he wanted a girlfriend which made me feel extremely low about myself. So that just told me that he flat out just doesn't want a relationship with me and I don't want anything to do with him anymore but I don't know how to make it out of this friendship/relationship safely knowing that he has a video of me out there. I'm just at an all-time low over this whole thing. Someone please help me and tell me what I should do.