She swore she would never speak to him. He swore he would never fall for her. But promises are fragile especially when hearts get involved. Lena has only one rule: stay away from Kai Stone, the man who shattered her best friend’s heart. Kai has only one weakness: Lena the girl he was never supposed to notice. What begins as hatred slowly turns into stolen glances, unwanted feelings, and a love that could destroy friendships forever. Some enemies are meant to be avoided. Others are impossible to resist.