"Watermelon," a novel by Marian Keyes, tells the story of Claire, who finds herself grappling with the emotional fallout of her marriage. After catching her husband in a shocking act, she returns to her family's home and begins to reassess her life and relationships. The narrative explores themes of love, heartbreak, and self-discovery as Claire navigates her insecurities and learns to prioritize herself amidst turmoil.

The phrase "If it was that beautiful, why did I leave you" encapsulates the essence of Claire’s journey. It reflects the conflict between cherished memories and the reality of her situation, highlighting the struggles many face when trying to reconcile past happiness with present pain. Through Claire's experiences, the novel offers a poignant commentary on the complexities of love and the importance of self-worth in the aftermath of betrayal.