"This Girl" is the concluding part of the popular Slammed series by Colleen Hoover, which explores the complex facets of love and relationships. In this novel, the story of Layken and Will is told from Will's perspective, revealing his deepest thoughts and feelings. The two protagonists, now married, have overcome the challenges of their relationship and enjoy a new sense of security. However, Layken is curious about her husband's past, which Will would prefer to keep hidden. In an emotional flashback, Will shares his memories, encompassing both beautiful and painful moments. This narrative offers a deep insight into the dynamics of their relationship and the challenges they must face to shape a shared future. Readers are introduced to Will's inner world and experience the importance of confronting the past to strengthen their love.