The knight is not satisfied because he has the old woman for his wife and she is also someone who is not from a wealthy family. She is responding to that, that he should know that real wealth is not coming from someone else's finances, real wealth should be about a persons' character.
When they were talking about her age, he said to him that he should have respect because of that and her age should earn his respect. She was also saying that her ugliness should show him that she could not have a lover or do something to him behind his back.
