it Ends with Us" is a novel written by the New York Times bestselling author Colleen Hoover. This book tells the story of Lily, a hardworking woman who has come a long way from her small town upbringing. She has graduated from college, moved to Boston, and started her own business. The story takes a romantic turn when she meets a neurosurgeon named Ryle Kincaid, who is assertive, stubborn, and brilliant, and who also has a soft spot for Lily.