What Is This Girl Up?????????

i added this chick on facebook like awhile back asking her if she was the cute girl in my biology cl.then she said possibly lool.so a couple weeks later she adds this new picture on her profile so i comment it so a couple minutes later she messages me saying she liked my comments but she accidently deleted it and she wanted me to write it again it has all these smiley faces.so i jokingly act like an to her but i tell her i told her that was just my way of flirtin.so she was like thanks babe.so i was walkin in the hallway and she was talkin to one of her friends.then she looked at me and raised her fist.so i just ignored it because i dont even know her like that and never had a real convo with her.throughout the week she been do these little mean things but i didnt pay it any attention.so last friday i walk in cl and sit in my seat.then she sits on this stool thats near my desk and she was lookin better then usual.so i felt her starin.so i looked her up and down then smile then go back to listenin 2 my music.then she gets off the stool and holds my hand then rubs my hand with her thumb.i just looked at her like wtf cause she didnt say anythin.so i was like watever then tonight i saw her on facebook so i message her asked her why does she stare at me does she have a problem with me or somethin.she said thats her way of flirting and she with a smiley and she called me sweetcheeks. its weird cause i kinda dont take her serious cause she called me sweetcheeks.so i dont know what shes trynna do or prove.