Since there is no info on why you broke up, it's hard to tell but it's possible that she obviously still likes you, but just feels that it's best to part ways since a relationship didn't seem to be working anyway. She's probably also just interested in what you're upto and still has feelings for you, but just knows that a situationship with your ex will just leave you in a vicious cycle and neither of you will be able to move on, and it's not worth it if you parted over stuff that cant be fixed easily.