She grew absolutely ashamed of herself. Of neither Darcy nor Wickham, could she think, without feeling that she had been blind, partial, prejudiced, absurd.
– Jane Austen
Pride and Prejudice, Chapter 36. As Elizabeth’s eureka moment sinks in, she realizes how wrong and prejudiced she has been about both Darcy and Wickham. It’s a painful moment of self-awareness for her and she feels humiliatingly foolish.