Help me explain this girl?

you are looking into this too much. let it go and worry about yourself. its as simple as that.

could have been an accidental call for all you know

I don't want to be a let down, but maybe it was a mistake :-? If you knew she had your number. Or she had to tell you something about class or something else like that? It doesn't seem like she'll start with a phone call if you're not that familiar with each other. Don't send her many messages, I'd leave it at that or one more, max, if you feel the need. Oh, oh, if you can, you could turn this in your favour and start talking to her. Good luck!

Oh we are already familiar. I've hung round her place (just us), got a drink with her, talk a lot. We are familar- just don't text each other that often.

From her point of view:

-Accidentally pocketdialled the creep
-Thank god he didn't answer
-**** he called me back
-i didn't answer
-ffs now he's texting me

Im just going to pretend I didn't see it. hopefully he doesnt over think this situation and he just forgets.