Nick observes that Daisy did not enjoy the party, except for the short time she had spent alone with Gatsby. For the most part, Daisy was "offended" by party, in Nick's words, "because it wasn't a gesture but an emotion." Daisy's negative reaction to Gatsby's party extended to West Egg generally:
She was appalled by West Egg, this unprecedented "place" that Broadway had begotten upon a Long Island fishing village--appalled by its raw vigor that chafed under the old euphemisms . . . . She saw something awful in the very simplicity she failed to understand.
Daisy snobbishly rejects West Egg because it lacks the superficiality of the social conventions with which she has always lived.
Daisy is a character that we want so much to like, but she proves time and again just what kind of woman she really is. According to Nick, Daisy is offended by the party because she thinks it wasn't a gesture but an emotion. We see that Daisy does not have much fun at the party, the only time she enjoyed was the few moments she was alone with Gatsby. Daisy shows her snobbish side while at the party.
We know that Gatsby is in love with Daisy, or at least the thought of her. We want Daisy to be deserving of Gatsby's love and devotion, but she just doesn't prove that she is. Throughout the novel, we see Daisy as a snob and self absorbed. We come to learn that Daisy is selfish and self serving. She has grown up around money, so she expects people to act a certain way, and when they don't, she becomes judgmental. Gatsby has done things he probably shouldn't have done, but he did these things to prove himself to Daisy. It is a sad concept that Gatsby thinks he has to prove his worthiness to her.
Daisy looks down on people with new money. She comes from old money and holds herself to a different standard than those who have just come into money. In one way, we can feel for Daisy. She was raised a certain way and was taught how she was suppose to act. This is the only way of life she knows, so we can see, in some small way, why she is the way she is, but when real love comes to her, she turns her back on it. This kind of love comes along so rarely, and Daisy, because of her selfishness and being a part of the elite, doesn't trust the real love that is offered to her. That is the real tragedy.
According Nick Daisy was not so enthusiastic about the party. It just was not for her. Daisy viewed all the people n the party as flippant, rowdy, and rude. Her tone of voice carried like that of an elitist. Daisy basically saw the party beneath her. She would sit and mop around complain about how boring the party was. Remember Daisy is use to attending parties where socialites and those a like gather around and basically network and gossip.