With the window now open, he can hear not only Rosette's voice, but those of an increasingly angry crowd. He feels, all of a sudden, crushing guilt. He'd avoided her not for her sake, but for the sake of his own selfish self-loathing. His shame is unbearable.

...

Fortunately, he is experienced at keeping awful feelings like this hidden, so he beams up at her, while Emily exclaims, "YOU'RE ONE TO TALK, SISTER!"

While Emily chastises, he ducks his head inside again, pays his fare, and unfolds himself out of the cab (through the window). Leaping to the pavement, he remarks gaily, "Never mind that, Emily. I think we're all better off on foot. Come along, Miss Rosette!"