Throw away all information about them, literally get rid of every connection you have with them, texting, facebook friend, get rid of that thing he game you, and try to hang with friends. They'll make me motivated, and forget everything in your life. Have silent time, think why you want to move on, and think about the bad things he has done. It'll remind you, of why you want to move on. Goodluck!
Keep your self respect safe
Find someone else...