The Hating Game by Sally Thorne
Lucy Hutton and Joshua Templeman hate each other. Unfortunately, their publishing houses merged and they now must work together as executive assistants to the two CEO's of the company. Since they find each other intolerable, the two engage in passive aggressive behavior towards one another, playing mean games to pass their time. Now up for the same promotion, the hating game has elevated... as has their frustrations with each other. As the tension mounts, so does their attraction for one another. The thing is, neither knows if it is still a game or if these feelings are real.