Abused but he saved me

Storm is an 17 year old girl who is abused by her uncle after her parents died. she works hard to keep it a secret. then the new kid came along, said his name was tyler. there were things about him that sparked her interest. why does she feel sparks every time he touches her? how does he se that something is wrong when she just met him and the people that shes known almost all her life dont see that any thing is wrong? and why does he keep coming back to her after she tells him to go away even though no one else would?