Girls did I scare her away or creep her out?

[Jon]

So I'm a little lost I met a girl in college last year. She was shy and I could tell because I'm the only person she made an effort to talk to in class . She would always sit by me and would walk with me. When she found she had Instagram she asked for my username so she could follow me. Even asked if I had a girlfriend. I did ask her to hangout and she got really red in the face and stuttered to email her. She never answered so I didn't contact her over the summer at all. The out of nowhere she gets on the same shuttle as me and excitedly greets me. She sits next to me and asks me all of these questions about myself and then that night likes a few of my pictures on Instagram. So I sent her a friend request on Facebook and she accepts and we send a few flirty messages. I eventually say well I'd love to see you sometime when are you free to get together? She never responded. She didn't delete me or unfollow me but am I creepy to her or what? I don't get it?