Should I be friends with my ex or just leave him alone?

honestly it sounds like he cant kep up his mind... and if u stayed close to him after cheating and 10 break ups, you must have really cared about him. but in a case like this i would say just let him go. he doesnt seem safe. if you stay friends with him, its even possible that you could end up going back to him. you dont want that if he will just cause you pain.