NEED help please ANYONE ?

Well I was in a bad relationship,and its over now.But my ex shows up to the places that Im at.And its just like this confusion in my head cause I still have these feeling for this person.But its just like how to overcome it when there always coming up in your face.Its just alot right now and i dont know how to deal with it.Like i know i would never go back to it but hes coming up in my face trying to make me jealous by talking with girls so I could remember I guess memories like I dont get it.Like what does he want from me,hasnt he already hurt me enough,and I have to deal with his drama too?