What does the Official warn Cassia might happen to Ky if they maintain their relationship?

As the Official warns her about her relationships, Cassia mentions that Ky is just a friend that hikes with her. The Official says that feelings towards people who are different from a Match are common, but in this case, it's unacceptable since Ky is an Aberration. She knows it's more than a friendship. She warns Cassia that if the relationship continues, Ky can be sent back to the Outer Provinces. Cassia asks her what Infraction she has committed, and the Official says that was an error. She hasn't committed an Infraction.