Find evidence that the real Daisy cannot measure up to or replace Gatsby's ideal he created. What part of Daisy still fascinated Gatsby?Chapter 5 or 6
In chapter 5, after Daisy and Jay reunite at Nick's house for the first time in five years, Nick notes that the green light at the end of Daisy's dock was now just a green light and that Gatsby's "...count of enchanted objects had diminished by one." Then later Nick ponders the enormity of meeting a love again after five years. He says, "There must have been moments even that afternoon when Daisy tumbled short of his dreams - ....because of the colossal vitality of his illusion." Even Nick realizes that Jay, as Daisy notes in chapter 7, wants too much. Jay has a dream of Daisy that he's built up in him mind and in his memory. Jay has glamorized his memory of Daisy to the point of impossibility. In chapter 6, Nick cautions Jay about asking for too much because the past cannot be repeated. Jay's response, "Can't repeat the past?...Why of course you can!" tells us that Jay has not let go of his romanticized vision of Daisy. In Jay's mind, Daisy is still the perfect idealized person he has created in his memory. Over the years, Jay has forgotten all the real, human qualities Daisy had and he has built up the good qualities to the point of impossibility. Additionally, he wants to return to five years ago before Daisy met Tom, before she got married, and before she had her daughter. None of that can be erased so she will never be able to really measure up to his "perfect" memory of her.