What is the reader left to think about Daisy's emotional state and her relationship with Tom in chapter one?

Daisy knows Tom is cheating on her. She seems resigned to this fact but it obviously bothers her. We see her act pensive and upset when she knows Tom is taking a phone call from his lover. The relationship seems to be based on the fact that Tom is filthy rich and Daisy wants that lifestyle. Tom is afforded freedom to do anything he wants within the marriage.