Great Gatsby the Beginning

1.
The main character is Nick Carroway and he seems to feel like a loner in his new place in New York. His family wasn't from there but he moved there working on bonds. He doesn't seem too social or too friendly but he still gets along with people.

2.
I think he choose this guy because he his more unique then the others so far in the story. All his Friends and family seem to be rich and he doesn't seem to have that much. Also everyone else seems fast pasted and they get bored easy where as he takes things slower and stays on topics for longer. If he choose someone else it would sound like that character is just like every one else in the book.