I have a question

This is bothering me and I can't stop thinking about it...warning it may be long...okay so my boyfriend and I have dated for almost a year, March 29 makes a year. He was controlling and verbally abusive and guilt tripped you and wouldn't let me be alone. So i broke up with him a couple days ago. He has my aunts number memorized (I live with her) and then he told her that I need to stay away from him or else he's gunna tell the principle/cops that I "threatened" to kill him/break up with him, which is completely a lie...my aunt even check all of our messages and found nothing, then she told him to send it but he made up a lame excuse that's theirs so many bad words and stuff 🙄, but he never trusted me with my ex (him and I were off and on 3 times) and the school got a coffee shop and my ex and I both happened to work their and neither of us knew that until the first day, so him and I started getting along and became good friends. He got more mature then the last times I dated him. And I feel like I liked him since then but made myself not think about him because I was in a relationship. But then when I broke up with my boyfriend he got really psychotic and wanted me to kill him or he was gunna kill himself and I told him no that's not right, but he went and told my aunt that I threatened to kill him. But towards the end of my relationship i fell hard like I have a big crush on my ex again 🙄, idk why to do, we have been friends with benefits a little, and we both really like each other and proms coming up, should I date him again or what should I do? I need recommendations or help please 🙁