hElp Me!!! :'(

I have a crush in school and just get her num...
We never talk in school and today she sent me sms.......

She sent me something like she saw a very beautiful rainbow and she make a wish...

Then i reply something and i ask her what she is doing,
She answer and ask me too...

I said i using com and chatting with her...
Then no reply
So i sent another message saying
How she manage to sent me sms when doing so many things.... and ask abt her cca..




Then she never reply :'(
Did i say something stupid?

Can someone give some idea what i should talk?
Real ideas!!!
Pls dont write: treat her and talk to her like a friend
or something like that


Chinese also can!