The summer after senior year is not going as eighteen-year-old Lu Charles expected: after her longtime boyfriend unexpectedly breaks up with her, she finds herself unable to write her relationships column for Misnomer, the popular e-zine that feels so central to her identity. Then, she meets Cal, a handsome, charming and decidedly un-single stranger. Or is he?

Cal’s ever-practical girlfriend Iris is looking ahead to her first year of college, and her plans do not include a long-distance boyfriend. When Lu learns that Cal and Iris have planned to end their relationship at the end of the summer, she becomes fascinated and decides to chronicle the last months the couple will spend together. But the closer she gets to both of them, the harder it becomes to untangle her own feelings toward Cal from the story she’s writing. When Lu’s ex-boyfriend Leo unexpectedly comes back into the picture, Lu will have to decide what she wants—and from whom—or risk losing it all