Girl help?10 points!?

So starting last month, i started talking to this girl i like on twitter. She doesn't know me in real life and she's a year younger than me, we study in the same school. She's the type of hyper and cheerful girl and nothing gets her down or dampens her mood easily(extra info). Just yesterday a close friend of mine, who is her team mate for the netball team told me that she's crept out by me, and she thinks that its because she barely know me but yet i am talking to her so often online. My question is, what should i do now, considering she's a little crept out by me.