My ex boyfriend was stareing at me ?

So today i went to go talk to the school counsellor about exams and when we stepped out of her office to look at the dates i caught him stareing at me. About a week ago me and my ex had broken up. Yesterday he started talking to me on fb for something , and then today when i caught him stareing at me he made a weird face and then looked away awkwardly .. it was more of a surprise face with like a tad bit of a smile .. I dunno if he still likes me or not .. it's confusing ..