The Ones We Hate by Katie Golightly

Piper Hartrick has only ever openly despised one person. For every smile she conjures up, he balances the energy with a frown. With every careful step she makes into ownership of her family’s design business, he makes his own moves by bulldozing his way into a room. When an unexpected turn of events has him practically begging for her help, she finds that she might enjoy the way he looks on his knees a little too much to not consider his offer.
Leo Diaz is confident. He doesn’t bother with wasted niceties when his dreams of becoming a movie director have never called for a meek and docile type. His studies have given him the unique ability to judge someone’s acting, so he can’t help but notice the biggest faker of them all. She smiles at the drop of a hat and expects the world to shine a spotlight on her. Unfortunately, when his shot at directing Fletcher University’s musical hinges on finding the perfect good girl character, he knows exactly who fits the part.