This gentleman was a confidant of Evgenie’s, and had doubtless heard of the carriage episode.
The prince’s further fate was more or less decided by Colia, who selected, out of all the persons he had met during the last six or seven months, Evgenie Pavlovitch, as friend and confidant.
There are no more uses of "confidant" in the book.
Show samples from other sources
It all seemed very noble—and frustrating to those involved—until Mark came across an exchange between Mr. Spilker and Ladena Lichliter, who seemed to be his closest confidant, that sent an icy chill along his arms.
James Dashner -- The Kill Order
In the cereal aisle or frozen food section, Gabby couldn’t seem to avoid him, and he became something of a confidant.