Evernight (Evernight #1) by Claudia Gray

Bianca wants to escape.

She's been uprooted from her small hometown and enrolled at Evernight Academy, an eerie Gothic boarding school where the students are somehow too perfect: smart, sleek, and almost predatory. Bianca knows she doesn't fit in.

Then she meets Lucas. He's not the 'Evernight type' either, and he likes it that way. Lucas ignores the rules, stands up to the snobs and warns Biance to be careful - even when it comes to caring about him. 'I couldn't stand it if they took it out on you,' he tells Bianca, 'and eventually they would.'

But the connection between Biance and Lucas can't be denied. Biance will risk anything to be with Lucas, but dark secrets are fated to tear them both apart ... and to make Bianca question everything she's ever believed.