Mrs. Woodhouse’s death probably exasperated her husband’s fears and perhaps Isabella’s as well but he has been a “valetudinarian all his life” (1) so I don’t think there is much chance he was ever inclined not to worry and be overprotective of his own health. A valetudinarian is defined as “a person who is excessively concerned about his or her poor health or ailments” (dictionary.com). Isabella appears to be a lot like her father. I wonder if she would have joined his boycott of Mrs. Weston’s wedding cake:

She [Isabella] was not a woman of strong understanding or any quickness; and with this resemblance of her father, she inherited also much of his constitution; was delicate in her own health, over-careful of that of her children, had many fears and many nerves, and was as fond of her own Mr. Wingfield in town as her father could be of Mr. Perry. They were alike too, in a general benevolence of temper, and a strong habit of regard for every old acquaintance. (11)