Partially based on Fitzgerald’s wife, Zelda, Daisy is a beautiful young woman from Louisville, Kentucky. She is Nick’s cousin and the object of Gatsby’s love. As a young debutante in Louisville, Daisy was extremely popular among the military officers stationed near her home, including Jay Gatsby. Gatsby lied about his background to Daisy, claiming to be from a wealthy family in order to convince her that he was worthy of her. Eventually, Gatsby won Daisy’s heart, and they made love before Gatsby left to fight in the war. Daisy promised to wait for Gatsby, but in 1919 she chose instead to marry Tom Buchanan, a young man from a solid, aristocratic family who could promise her a wealthy lifestyle and who had the support of her parents.
After 1919, Gatsby dedicated himself to winning Daisy back, making her the single goal of all of his dreams and the main motivation behind his acquisition of immense wealth through criminal activity. To Gatsby, Daisy represents the paragon of perfection—she has the aura of charm, wealth, sophistication, grace, and aristocracy that he longed for as a child in North Dakota and that first attracted him to her. In reality, however, Daisy falls far short of Gatsby’s ideals. She is beautiful and charming, but also fickle, shallow, bored, and sardonic. Nick characterizes her as a careless person who smashes things up and then retreats behind her money. Daisy proves her real nature when she chooses Tom over Gatsby in Chapter 7, then allows Gatsby to take the blame for killing Myrtle Wilson even though she herself was driving the car. Finally, rather than attend Gatsby’s funeral, Daisy and Tom move away, leaving no forwarding address.
Like Zelda Fitzgerald, Daisy is in love with money, ease, and material luxury. She is capable of affection (she seems genuinely fond of Nick and occasionally seems to love Gatsby sincerely), but not of sustained loyalty or care. She is indifferent even to her own infant daughter, never discussing her and treating her as an afterthought when she is introduced in Chapter 7. In Fitzgerald’s conception of America in the 1920s, Daisy represents the amoral values of the aristocratic East Egg set.