Can girls please please solution this query PLZ!!?

Hi guys or girls I am in grade 10 and have a crush on a grade 12 girl. So yeah I started to look at her the first time I saw her in gym class and she was looking at me too and when we both saw each other looking at each other we would of looked away. So yeah the looking has continued and I saw a couple of times when I was walking across her she was smiling at me and once I was walking and I saw her giggling and looking at me and I walked away cause I get nervous around her. When I am close to her and we are both alone she would look at me like in a cute way, twinkling her eyes and touching her hair and she still does that now too. When I am with ma friends she never looks at me and if I am far from her and she is with her friends she was staring at me 2 days ago in like such a cute way. Once I was walking at the tracks in gym class this was a 3 month ago I was walking and she stopped running and was walking beside me and touching her hair and I was a pussy and didn’t do anything.
When I walk across her and if I am close to her I would go close to her and she sort of comes close to me and we both like touch each others arm LOOL, and if feels so good OMG touching her warm little hands. The looking happens a lot and yeah I really really like her and we are both from the same country.
Sometimes when my back is behind her and when I turn I see her looking at me and I would quickly look away. When I was with my friends at lunch time in the halls and she was too I look at her and I see her looking at me and she didn’t look away and her face was like so innocent and this was before I sent her those message at FB and I didn’t see her since tuesday cause now it is exams so there is a schedule if u go to school or not.
So I wrote on her FB wall 4 days ago saying “r u…” I mean like from my country and no answer after 2 hours and I deleted it. I inboxed her wednesday night saying “Heyy I really think your beautiful and wanna be friends” and no answer from wednesday night and she is never online LOOOL. So 3 days ago I sent her a message to her inbox again and I said hat “hey I think your really cute cause I see u in the hallways at skool and since u are from the same country at me. I would love to talk to u so, I hope u answer back bye”.
She was online 3 days ago cause she uploaded new pics but I wasn’t online so she must of ignored the first message. I made the story short and she is a cute, nice and she looks very shy and I really am waiting for her to answer me but she didn’t. What if she doesn’t answer me then what should I do?
My friend told me that she stares at me too in class but she is quiet and she has showed me lot’s of signals in school and why isn’t she replying me back?
If i see her in school should i talk to her face to face?
Well she looks at me a lot and sometimes when my back is behind her she would look at me and when I look at her she would look away!
Before yesterday night I dreamed that she did answer me back on facebook and I was so happy but when I wook up I got so mad LOOL!!!!!

K so this is what I really think the option is now
1. She doesn’t and didn’t like me?
2. She likes me and is shy, so she wants me to talk to her face to face?
PLZ PLZ answer this thanks