His manner is still unfortunate.
"You evade the question," says she frowning.

"But a concert _isn't_ like a ball, is it ?" "I don't know," says the professor, who indeed has had little knowledge of either for years, and whose unlucky answer arises solely from inability to give her an honest reply.
"You hesitate," says she, "you disapprove then.

But," defiantly, "I don't care--a concert is _not_ like a ball." "No--I suppose not!" "I can see what you are thinking," returns she, struggling with her mortification.

"And it is very _hard_ of you.

Just because _you_ don't care to go anywhere, you think _I_ oughtn't to care either.