Question

in the story the great gatsby how would you explain what the following quote means;
There were the same people, or at least the same sort of people.the same profusion of champagne the same many colored, many keyed commotion, but i felt an unpleasantness in the air, a pervading harshness that hadnt been there before, or perhaps i have mergenly grew used to it. grown to except west egg as a world complete to itself, with its own standards, and its own great figures. second to nothing because it had no conciensness of being so and now i was looking at it again,through daisys eyes it is invaribly saddening to look through new eyes at things apon which yu have expended your own powers of adjustment