Dose my ex still want me or what?

Why did you break up? Was it not that serious or was it a serious reason? Is it a good idea to go back with him? Only you can answer that because once you let him into your life again you dont know what is going to happen. So be careful and think things out. I think he is showing interest. He is teasing as he might be taking it slow to see your reaction if he is accepted or not. If you do want to give it a chance then I suggest...the old fashion way......TALK to him. Just simple things such as hello or hi.....just start off simple. No long conversations. Lets see what he does when you open up the lines of communication. Its good to hear that both of you study and value an education. Good luck.