Why didn't you tell me before ?" "It wasn't necessary," said Hurstwood.
For all her acquiescence, there was something about the way Hurstwood spoke which reminded Carrie of Drouet and his little deal which he was always about to put through.

It was only the thought of a second, but it was a beginning.

It was something new in her thinking of Hurstwood.
Other things followed from time to time, little things of the same sort, which in their cumulative effect were eventually equal to a full revelation.

Carrie was not dull by any means.

Two persons cannot long dwell together without coming to an understanding of one another.