In The Great Gatsby, why does Gatsby throw huge expensive parties for people he does not even know?
In The Great Gatsby, Jay Gatsby throws parties to fill a void in his past; to exercise his present power; and to impress the one woman he had ever loved, for whom he wasn't good enough. Jay Gatsby began life in humble circumstances, tried to improve his situation, met wealthy, pampered Daisy and fell in love. She didn't marry him because he wasn't good enough and could neither appreciate nor provide all the comforts she was accustomed to.
When Gatsby made his fortune through dishonest means, he began surrounding himself with the pomp, luxury and social acceptance he never had and which Daisy had demanded of him. He entertained a secret hope that Daisy would find her way into his world again. He threw lavish parties to create what Daisy demanded and to exercise the power of his vast wealth, knowing all the while that people had heard rumors about his business dealings and the source of his wealth and didn't really think of him as a friend: To the social circle, Gatsby was only a good time, but the people partying at his home gave him what he was looking for anyway.