Should i call my ex

He was emotionally abusive. We dated for about a year and a half and were best friends for a year before dating. He means a lot to me. We broke up in december and ive been in very lowcontact with him ever since. He says that if i just call him he will have the closure he needs and we can move on. Part of me really wants to but part of me is worried he will manipulate me if i do call him