Her heart did whisper that he had done it for her. But it was a hope shortly checked by other considerations, and she soon felt that even her vanity was insufficient, when required to depend on his affection for her, for a woman who had already refused him, as able to overcome a sentiment so natural as abhorrence against relationship with Wickham.
– Jane Austen
Pride and Prejudice, Chapter 52. When Mrs. Gardiner implies that Darcy’s rescue of Lydia was motivated by love for Elizabeth, Elizabeth wants to believe this. But she soon dismisses that hope as vanity. She cannot see how Darcy would want a woman who had refused him and a family that now included Wickham.