Emotional Manipulation

Hi. I broke up with my bf in November. It was a complicated relationship, lots of emotional manipulation involved which made me come back to him several times, even though he didn't respect me or my feelings. Now, after that breakup, my ex promised to help me through the transition. You see, for more than two years he had been the closest person to me, and I would use the relationship with him to fill the social void in my life (wrong thing, I know). So I agreed with him. At first I felt really good. Angry and sad a little but overall I felt good because I finally didn't have to think of fulfilling his expectations and I didn't have to dread that he would hurt me again by something. And also, with him I always felt like I was in a competition with other girls, so now I also felt like I didnt have to compete anymore. However each time we spoke to each other after the breakup, the worst thing possible unfolded. My ex would blame me for everything. He would completely refuse his responsibility. He would talk about other girls. Do stuff so I saw they were texting him or he was texting them. This was hurting me. So then he started lying to me and wanted to have sex with me again. Blamed me that I provoked him. I couldn't handle any of it. + just before Christmas he decided to completely cut me off. Literally deleted me from everywhere. The worst is, he did everything to isolate me from various people, now he cut me off and I feel alone & manipulated :(