And besides, should [Rodolphe] hesitate to come to her assistance, she would know well enough how one single glance would reawaken their lost love. So she set out towards La Huchette, unaware that she was hastening to offer what had so angered her a while ago, not in the least conscious of her prostitution.

This passage comes from Part Three, Chapter VII. What angered Emma “a while ago” was the idea that she might sell her sex for money. She has already refused Guillaumin’s offers of money in exchange for services of the flesh. Here, however, Flaubert points out that her willingness to rekindle her romance with Rodolphe is no better than prostitution. Her unawareness of the equivalence of the two actions demonstrates the degree of her moral corruption as the novel nears its conclusion. At the same time, her belief that Rodolphe truly loved her enough to help her now is proof of her continued naiveté and self-delusion.