Very_Sad,
This may sound silly but you should start to cheer yourself up.
Forget about her and move on. Act as if nothing happen. Yes you are
damnnnn right, you never did anything wrong, you just acted out of
natural instincts.
Now hear me out, I am giving you free lessons, I am so
charitable. You never learn unless you have years of
experience.
Now act as if nothing happen. Convince yourself you never did
anything wrong. Also, the fact that she doesn't like you (hurts?
Well sorry you have to take the poison). Go to school, smile - even
show your teeth. If you happen to bump into her, show her how
cheerful you are by smiling and walking in a happy mood.
Occassionally you should also humm some tunes - maybe you can sing
some Christmas Carol tunes - "lalalalaala". You don't need to
remember the lyrics, just humm - to show everyone around you how
cheerful you are. You may be hurting inside but in the long run,
this practice would make you cheerful and forget about her. Just
show her that you are not affected at all.
If someone at school tries to make fun at you, they say some
hurtful things and deliberately make you hear them. Just smile and
humm some nice music. Also, stop avoiding your friends - instead
embrace them. Start to break out, mix with them, force a
conversation even if you have to. If people start avoiding you,
just smile and be happy and whenever possible go and mix with
people. Show them you got high self esteem and not give a crap what
they think about you.
Don teach people to be like a xiao ding dong can anot ?
Just be natural and back to your old self can already.
You put on an act you think the girl won't see through it har
?
Girls not stupid ok ? Good.