What literary device best describes the connection between Rochester's rejection of Blanche in favor of Jane, and his ordering jewels and taking Jane to buy fine gowns after their engagement?

Literary devices is a writing style of an author to add spice to his / her story. In the story of Mr. Rochester's rejection of Blanche, his order of jewels and buy fine gowns, are considered as an Intertextual literary device. It is defined as a reference that exhibits a text. It depicts a concept from other texts.