A billionaire, his dedicated assistant and his selfish, competitive ex-fling, Caroline. I'm Mia, and this is the story of how I fell in love, got my heart broken, and slowly learned how to put the pieces back together again. All thanks to the billionaire's cunning ex. It all started when I was hired by my boss, Benjamin Cole—an incredibly successful and devastatingly handsome CEO—to pose as his girlfriend. What began as a fake relationship soon became something real, something more than either of us anticipated. I fell for him, and he fell for me. But love, as I learned, is never easy. Just when I thought Benjamin and I were building a life together, his past reappeared in the form of Caroline, his ambitious ex-girlfriend, who seemed determined to push her way back into his life. I had to prove I was good enough to be the billionaire's true love.