“not over” my ex

i’m over my ex in the sense that i don’t at all miss having a romantic relationship with him but for some reason i can’t escape hearing about him/his life because we live in the same area and have lots of mutual connections. we haven’t even spoken since january and broke up over a year and a half ago. i never got closure and for some reason have been upset every time i hear about him. but i don’t miss him and he was abusive and would never want to be with him again. how do i get over this?? i’ve already severed every connection i have to him.