So last year me and this girl dated, then we stopped randomly and then started again then stopped and so on but at the end of last year she started dating someone else. But now we go to different schools and she always pokes me and comes to talk to me at my locker and when we go to music class she always tells me to wait for her or I wait tell her to wait for me. She laughs a lot when I'm around her. Do you think she likes me?

Yes.
But how does all this hanging around lockers happen when you are in different schools?

Is she still going out with someone?
Do you two go to the same school or not?