Girl help!!!!!!!!!!!!!!!!!!!!!!!!!!…

hi last year it was my first year in high school. on my way to my first cl this girl came to me and said i was cute but to me it sounded really fake.then about 2 months later she walked ped and said hi to me and then while she was waliking i heard her say to her friend that i was a cutie. and on embly day i sat next to her and i started a subject which made us talk for a while until the bell rang and also she randmoly came to me and said that this hollywood actor is cute.sometimes i used to agnore her bucause of my sometimes shy nature. if u are wondering i really like this girl. so this year i have realised that she is not talking to me much any more. what have i done wrong and what can i do to make her like me and i am also wondering if she liked me last year if she did whats wrong with her now and yesterday my friend asked her who she likes mor me or my friend and she said my friend please help i really like this girl thanks!