[You know, Sebastian might not always understand humans, but that doesn't mean he's bad at reading them.
...Huh. Doesn't like that, does he?
Well. Sebastian doesn't care if he's disliked, but he also doesn't have any particular interest in fanning the flames. He settles on a somewhat reassuring:]
It might well be a quick affair. I do believe tutoring you will be of far more interest to him. [Partially because Sebastian shouldn't need much coaching to begin with, and no one could possibly take pleasure in coaching the young master, because the young master is a terrible ingrate of a student.]