I'm a little confused with girls in middle school?

I recently wrote a question like this but somebody said to give more details so i will, we used to text a lot but she never texted me first (I don't know if thats normal) recently she stopped texting me back 9/10 times i text her which is not often so i don't think i'm bothering her, but at school she laughs at the things i say when i'm not talking to her and talks to her friends about me.(She was talking about how I had long legs like a gazelle or something weird) but rarely ever talks to me like she used to. I hope that helps a little more. Also all her friends talk to me so it's not like I did something that would make all the girls mad.