In the flashback about daisy and gatsbys early romance, what is revealed about why daisy married tom? What does her decision show about her character?

Daisy chooses to marry Tom because of the money. Her decision reflects that she was a superficial, immature and egoist young girl, who prefers and easy life with a rich man to live in comfort and glamour, even if the love between them is not safe or true. She was unthoughtful and didn't care about anyone feelings