"The Unhoneymooners" is a romantic comedy novel by Christina Lauren that follows the story of Olive Torres and Ethan Thomas. After a disastrous wedding, the two are forced to go on a honeymoon trip to Hawaii when the bride's family offers the vacation to them. Despite their mutual dislike, they must pretend to be a happy couple. As they navigate their unexpected getaway, Olive and Ethan confront their past grievances and discover surprising chemistry. The story explores themes of love, rivalry, and the complexities of relationships, all set against the backdrop of a beautiful tropical paradise.