I am in a weird dilemma ? Please help me make up my mind.?

[Reporter]

Over the past year, I had this crush on this teacher. She is damn pretty and beautiful. I like her very much. She is a very good teacher .She was my old chemistry teacher at school. So here is the main story-
I have this habit adding my old teachers on facebook. I added her. She accepted my friend request. But then after like 2 weeks, I noticed that she isn't my friend on facebook. I got kind of worried why she deleted me. I am not that kind of a guy who would put pictures me and like bad or inappropriate pages on facebook. So I am wondering. A few days back , I and 3 of my friends were in mall and we encountered her. She didn't look at any one in particular but she looked me, I smiled and she smiled and she went by.She just looked at me and smiled.

So does this anything to with facebook thing ? I am worried. A lot of my other friends ( girls) added her in facbook. But why did she delete me and she smiled as if she doesn't realize the facebook thing.
Note- My friends who were with me at the mall, they know her too.

[Uhleesha LaPierre.]

its prolly just weird for her to have a student as a friend. that's a boy.

[bankone1111]

It may not even be your fault. The school principle or rules of the school may tell her not to add male students or the opposite sex to their face book. That means you have to wait till your an adult to add her and you can then tell her your 18 . She smiled cause she is a friendly teacher.. that does not mean she is interested in you for more than a student/ teacher friendship.

[Areno☺]

She probably just doesn't want any of her guy students on her facebook. If she had feelings back for you she probably really didn't want you on there because teachers can get in big trouble for being with students