A laugh-out-loud novel about a woman determined to track down her exes in hopes of repairing her failing love life—from the New York Times bestselling author of 500 Miles from You.

"I loved this book!"—Sophie Kinsella

We all look up our exes on-line...but should we?

Posy Fairweather is over the moon when her boyfriend Matt proposes in what is probably the most romantic way possible—on top of a mountain, in a thunderstorm, like something from a Nicholas Sparks novel. But a few days later he dumps her. Crushed and humiliated, Posy wonders why all her romances have always been such train wrecks.

Determined to gain some insight, Posy resolves to get online, track down her exes, and ask them. Which doors from Posy's past should stay closed? Which might open? Can she learn from past mistakes? And what if she has let Mr. Right slip through her fingers along the way?