Complicated Situation?

[MSJ2012]

There is this girl who I like a lotbut i am not sure if she likes me. I first got her number nd we texted each other almost everyday and she showed interest in me. Things were fine and all of a sudden her attitude changed towards me. She would walk right pass me without saying anything. So i decided to back off a bit and see how she would react. When i did this she started to say hi and i even walked her to her classes once in a while. Its a new year and i what to start off fresh what should i do. Happy New Year