The character you're likely thinking of is Mrs. Reed, Jane Eyre's cruel aunt. She doesn't rationalize bad manners either, but rather uses them as a tool of control. She believes her harsh treatment of Jane is justified, claiming Jane is a burden and a troublemaker.
Here's how Mrs. Reed justifies her behavior:
* She views Jane as a burden and a troublemaker: She blames Jane for her husband's death, believing Jane brought misfortune into the family.
* She believes in class hierarchy: Mrs. Reed feels superior to Jane because she is from a lower social standing. She considers it her right to discipline Jane harshly.
* She prioritizes appearances: Mrs. Reed cares about maintaining a proper image and sees Jane's rebellious nature as a threat to her social standing.
It's important to remember that Mrs. Reed's actions are not justified, but they are explained through her own limited understanding of the world and her own desire for control.