What are the falling actions in Matched?

The rising action in this novel is how Cassia is getting ready for her Match Ceremony, held by the Society, which is to determine the perfect mate for its citizens when they turn 17. At the banquet Cassia is matched with her best friend, Xander Carrow.Cassia, like all other matched individuals, is given a microcard which is supposed to have information on their match. When Cassia uses her microcard, both Xander and her friend Ky Markham come up on the screen. A Society Official visits Cassia and tells her that it was a mistake since Ky is an Aberration, and Aberrations cannot be matched.