He went off to fight in the first World War before leaving Gatsby met the love of his life, Daisy Fay. .
Gatsby realized that he needed wealth to secure Daisy's love, representing Gatsby's American Dream. Daisy played a very important role in Gatsby's life. After Gatsby left for the war Daisy met and married Tom Buchanan. Tom came from a wealthy family. Despite her marriage to Tom, Daisy showed great interest in Gatsby when she learned he lived nearby. "After you had gone home [Daisy] came into my room and woke me up, and said 'What Gatsby?' and when I described him- I was half asleep- she said in the strangest voice that it must be the man she used to know." (77). Daisy's curiosity gives Gatsby false hope of achieving his dream. Nick, Jordan and Gatsby planned for Daisy to see Gatsby again. However, when Gatsby later met Daisy at Nick's house, he was still in love with her, yet she was not as perfect and flawless as he had made her out to be."There must have been moments even that afternoon when Daisy tumbled short of his dreams - not through her own fault but because of the colossal vitality of his illusion. It had gone beyond her, beyond everything. He had thrown himself into it with a creative passion" (107). Later, when Gatsby and Daisy were at the Buchanan's home Gatsby met Daisy's daughter for the first time. Gatsby saw, but did not truly believe that Daisy has gotten has gotten married and had a child, "Gatsby and I in turn leaned down and took the small reluctant hand. Afterward [Gatsby] kept looking at [Daisy's] child with surprise. [Nick did not] think [Gatsby] had ever really believed in its existence before"(117). Through these senses Nick and the reader realized that Gatsby's dream was unattainable. Fitzgerald places Gatsby in an awkward situation to force him to choose between moving on or continuing to live in the past. Yet, Gatsby cannot accept the fact that Daisy is not the women he use to know and belongs to someone else.