Disclaimer - Pg 331

   She needs to forgive, but she cannot. She cannot forgive him because she has watched him over the last few weeks manage the idea of her being raped so much more easily than he had managed the idea of her having an affair... It seems to Catherine that the new truth he was offered was easier for him to swallow than adultery. When she is at her most brutal, she thinks that, given the choice, he would rather she had suffered than to have enjoyed a burst of illicit pleasure.