Isolation in The Great Gatsby is not the same as being alone. Although the characters are always in the company of others, the isolation is an internal one, stemming from their inability to truly experience intimacy with one another. The narrator reveals his fear of loneliness when he mentions his thirtieth birthday; his fear of aging seems to be tied to his fear of isolation. Gatsby, despite throwing lavish parties with hundreds of people, dies alone. Daisy’s need to be adored is most likely the cause of her own fear of isolation.
Although Nick seems to be everybody’s closest friend and confidante, he is the loneliest, most alienated character in the book.
Although Nick seems to fear isolation, he is self-destructive in his relationship with Jordan, ending things when he fears they are becoming too intimate.