F. Scott Fitzgerald's marriage to Zelda Sayre was a pivotal relationship that deeply influenced both his personal life and literary career. Their tumultuous union is often seen as a reflection of the excesses and struggles of the Jazz Age, capturing the themes of love, ambition, and societal expectations that permeate Fitzgerald's works. The complexities of their marriage, marked by passion, mental health struggles, and financial instability, shaped much of Fitzgerald's writing, including his most famous novel, 'The Great Gatsby.'