Final answer:
In 'The Illuminae', Kady breaks up with Ezra just before their planet is invaded, setting up a complex relationship dynamic as they navigate the ensuing chaos together.
Step-by-step explanation:
In the book The Illuminae, right before the invasion, Kady Grant broke up with Ezra Mason. This breakup took place on the morning of the day their planet was invaded.
Despite this initial conflict between the characters, they are forced to communicate and rely on each other for survival as they deal with the aftermath of the invasion and the subsequent events that unfold.