Elizabeth, however, had never been blind to the impropriety of her father’s behaviour as a husband. She had always seen it with pain; but respecting his abilities, and grateful for his affectionate treatment of herself, she endeavoured to forget what she could not overlook, and to banish from her thoughts that continual breach of conjugal obligation and decorum which, in exposing his wife to the contempt of her own children, was so highly reprehensible. But she had never felt so strongly as now the disadvantages which must attend the children of so unsuitable a marriage.
– Jane Austen
Pride and Prejudice, Chapter 42. Even Mr. Bennet’s favorite daughter Elizabeth is critical of his behavior as a husband. She reflects on his "reprehensible" treatment of his wife by continually exposing her to the contempt of her own children. Elizabeth feels strongly that her parents are unsuited to one another and this has disadvantaged their children.