Bobby doesn't feature heavily in the main action of the story, but the story is told in his honor. We get the feeling that Jean didn't appreciate him when he was alive. Now that he's dead, Jean gives him props for being "adventurous, extremely magnetic, and generous" and also for being "ribald" (i.e., inappropriate, off-color).
The story Jean dedicates to Bobby is the story of his two weeks in Montreal. It ends with Jean learning to be more accepting of the people around him. We get the impression that this did not extend to Bobby.
That Jean now sees Bobby in a truer light suggests that Jean's journey didn't really end when he left Montreal. He carried his experience with him though out his life, constantly growing and changing.