Why does my ex want to keep in touch?

He's probably not over you, or he just wants to see what happens. I've done that once before after me and my ex broke up (cept no cheating). It's cause theres possibly something still there that wants him to keep in contact. If it's just random "hey, how are you" once in a great while, thats pretty normal. If its consistant and decently often, then he wants something out of it.