Ernest Hemingway's literary style was deeply influenced by his relationships throughout his life. His interactions with influential figures such as F. Scott Fitzgerald and Gertrude Stein introduced him to modernist ideas and techniques. Additionally, Hemingway's tumultuous relationships with women often inspired the complex portrayals of female characters in his writing. His friendships and rivalries with fellow writers shaped his competitive nature and desire for literary innovation. Furthermore, his experiences in World War I and the Spanish Civil War added depth to his themes of wars and human struggle, solidifying his unique voice in literature.