Beg Borrow of Steal by Sarah Adams

Emily Walker hates having her carefully crafted world disrupted by anyone, most of all her legendary nemesis, Jack Bennett. He’s the opposite of the wonderful heroes she dreams up in her double life as a romance writer, which is why Emily was perfectly happy when Jack left Rome, Kentucky, mid-school year with his fiancée. The last thing Emily saw coming was Jack’s return at the start of the summer after calling off the wedding and ending his relationship, but he’s here to stay—as her colleague and her neighbor.