My situation is pretty unique, please help?

[rYe gUy]

Okay so right before thanksgiving break at my college I met this great girl in my apartment building. We hit it off right away and she really likes me alot. We hung out twice. One time we went to the gym together and talked alot, the next night we went out to dinner and made out. After we made out I wanted to have sex but didnt like say it, or lead into it, she was just like I should go...so she texted me the next day asking if I was mad that she did that? I said no just confused...so that was the last day I told her I could see her... the following week was finals and whenever I asked her out she said she was busy. the last thing we said to each other was this:

me: " I feel like we met at a really bad time this semester lol"
her: " Yeah I know what you mean lol"

the next morning she got on a plane back home to toronto and I never saw her again. I graduated this semester, she didn't. that was the last time I heard from her...I called her phone and texted her and heard nothing back. Eveyrtime I called her phone it went straight to voicemail...

fast forward ten days after we last spoke...I tried looking for her on facebook, nothing, I tried looking for her in the sutdent directory, I found her student email, I also found her twitter account by googling her name, the only thing is is I dont have a twitter account. her twitter said that she lost her phone and needed people numbers so DM them to her, whatever that means...

Should I try to contact her, I dont want to seem creepy or stalkerish, she knows what room I live at in my apartment building and I have my lease all next semester but I wont be there but my roommates will...what should I do? I miss her and I know she misses me too, we talked about going into a relationship and stuff too before she left but shes like Im so confused right now and worried, and I said about what? She says your hard to read, you can give someone a run for their money.