Puzzley puzzle

OK, I really don't know what gives here. Reading along in 1Q84 I find him using a kanji as a verb, but not at all the obscure verb the Wordtank gives. So I reach for the translation to see what they make of it, and find two sentences in the English version that don't exist in the Japanese. It doesn't look like there are variant versions of the Japanese work, so I have no idea where those sentences came from.

(The kanji is 肯 which Murakami seems to use for unazuku, nod in agreement.)
( On more disagreeable subjects )