Daisy Buchanan is, ultimately, the cause and effect of Gatsby’s life. She is the motivation and the death of him. I believe that Daisy Buchanan ‘destroyed’ Jay Gatsby. Through their complicated love affair, Daisy gave Gatsby a sense of false hope that the two would live ‘happily ever after’ together. Daisy does this in three major ways. First, she ‘feeds’ Gatsby’s dream of a life together. Second, she gives him a false sense of a reality together. Third, and finally, she betrays him, leaving his life devoid of the love that he pursued for the prime years of his life.
Jay Gatsby, from what the reader is told about him, lives his live solely in pursuit to regain the love of Daisy Buchanan.