When Daisy goes to Gatsby’s party, she seems miserable, which does not correlate with Jay’s expectations. She feels bad not because she dislikes the party, but because she enjoys it more than her own life.
Detailed answer:
Chapter 6 gives readers information about Gatsby and uncovers Mrs. Buchanan’s thoughts on party life. When Daisy attends Jay’s new money party, her impression provides an essential insight into the character. Gatsby finds Daisy to be bored and even sad. Her surprising reaction upsets Jay, resulting in a desire to relive the past.
It appears to be the first and the last time Daisy ever visits Jay’s regular arrangements. Party’s attendants are the mix consisting of criminals, celebrities, and strangers. It seems to be too much for the Buchanan couple. It confuses Gatsby, but the true nature of Daisy’s opinion is not so straight forward. It is hard for her to grasp the rawness and vulgarity of the people partying. But this unusual crowd she never encounters makes her realize how dull and mundane her life is.
Near the end of Chapter 6, Daisy and Tom are about to go home. The festivity’s conclusion creates an opportunity for the couple to talk about their impressions. Tom is unsatisfied with the people and the celebration’s nature. He is sure that his wife’s opinion will be the same. She liked it, but Tom’s stigmatic view does not let him understand the origin of her emotions. Daisy craves interesting talks and unusual people, but the absence of these things in life saddens her. The party demonstrates Daisy’s real opinion on such a lifestyle. In turn, it gives an insight into the true nature of her unhappiness.