Girl problem..?

So I'm a senior in high school. I had this thing with a sopre in December/January. I didn't realize it at the time but she is one of the most down to earth girls I have ever met. We had texted for a while. By a while I mean every day all day. And we had watched movies etc. in my basement. Now when I get bored and have no one to talk to I find myself wishing I could still talk to her. If i text her she will respond but thats about it and now i deleted her number from my phone. She wont respond to me any other way and I recenty sent her a message on facebook tellin her i needed to give her a movie she left at my house back and found no response. She has dated a guy since then but thy are now broken up and I have been livin single messin around with a relationship here and there. I don't know how to approach her. Im not really lookin for a relationship but wouldnt mind it. I think if i just talk to her randomly I would come off as a creeper. What do you think?