Note (return) — Queries.

Here the word is evidently employed (instead of restless[1]) figuratively for impatient; although I am not aware that a "bumptious" person might defend the word actually used, in the sense that the listener refused to go along further with the speaker. Still I think restlessness was the idea intended to be conveyed in the above passage, and that "impatient" would have been the better word, considering that it follows "he felt."