You Will Be Mine by Natasha Preston
Lylah and her roommates can’t wait to spend a night out partying together and escaping the stress of life and school. Lylah has been crushing on her best friend Chace since the day they met, and hopes that dancing with him will bring them closer. Then the doorbell rings but there is no one there, just an anonymous note addressed to Sonny. They all laugh it off as a secret admirer … until Sonny doesn’t come home.