Told this girl I liked her on facebook?

[hero1345679]

I really like this girl. We've really attracted to each other, hang out a lot but I never asked her seriously since I was going to transfer to another college. At the end of school year, I sent her a message saying how I will miss her. As I got back to my hometown and told Two days later, my friend that I should just tell her that I like her and move on. Therefore, he got on my facebook account and send a second message about how I like her and sorry to not tell her before. She saw both messages the next day but didn't respond until afterwards. Anyways, she replied until two weeks later saying how sorry she's late to reply, and that she will miss me too and ask me how I was doing. I replied three days later saying that my chat was messed up and told her I was doing. She never replied again.
Then I remembered that she had a trip to Norway, so I sent her another text wishing her good luck on her trips. She texted me three month later, I replied and she never replied again. I never texted her since then. I have a lot of question I want to ask her but I can't do it when she's not answering. How do I get her to talk to me again?