We can conclude that Nick doesn't really have a high opinion of Gatsby's party guests. He thinks they are acting as if they were children in an amusement park, screaming, dancing, and having too much fun. He believes they should be behaving more 'adult-like,' instead of like a bunch of children let loose. The guests are acting wild, drinking excessively, and behaving like animals.
Alicia wants comfort and he doesn't give her that
throughout their relationships, Alicia always Crave Jordan to be affectionate toward her and provide both psychical and emotional comfort in their relationships..
Jordan never really pay attention to this needs which make Alicia slowly distancing herself overtime. jordan's perspective only changed after Alicia became extremely ill.