Since Miss Arrowpoint was generally liked for the amiable unpretending way in which she wore her fortunes, and made a softening screen for the oddities of her mother, there seemed to be some unfitness in Gwendolen's looking so much more like a person of social importance.

Since Miss Arrowpoint was generally liked for the amiable unpretending way in which she wore her fortunes, and softened the oddities of her mother, it did not seem fitting for Gwendolen to look so much more important.
