Cora, who has ignored phone calls at her house, arrives at the station, and Camille expects she will corroborate her story, but Cora confidently insists that Cookie did not commit suicide, sticking resolutely to the story Camille concocted.
The passage describes Cora's defiance of Camille's expectations and her unwavering commitment to a fabricated story about Cookie's death. This suggests a potential conflict between their perspectives on the situation.