It Ends with Us: A Novel" is a heart-wrenching story of love, trauma, and forgiveness. The book follows Lily, a young woman who has been scarred by a troubled past, as she falls in love with Ryle, a successful entrepreneur with a troubled past of his own. As Lily and Ryle navigate the ups and downs of their relationship, they must confront the demons of their pasts and learn to forgive themselves and each other in order to move forward and build a future together. The title "It Ends with Us" refers to the idea that the characters' struggles and challenges come to an end and they are able to find happiness and build a life together.