Lydia Tar and the Cellist in Algar Concerto

Lydia Tar is so in a bubble, a cocoon of fame and adulation that it doesn't even to occur to her. She had lunch with this up and coming cellist who declines to order the cucumber salad despite her recommendation. And she just rapidly elevates the cellist's rise within the orchestra. The portrayal of what goes on between them is really the only concrete evidence.