Sworn (Book #1 of the Vampire Legends)

Rachel Wood is uprooted from her home and enters a new high school, in 10th grade, in an affluent suburb in Westchester, New York. She struggles with meeting new friends, finding a boyfriend, avoiding the cliques of mean girls, and meets a mysterious boy from her school, Benji, and knows he is different from everyone. As their romance deepens, will she give up everything to find out his secret?