You're bored and lonely. You've tried various activities and hobbies to occupy your time, but it's just too silent. Just hearing someone else's breathing would be comforting.

You decide to leave your room and find someone to be with, even just sit with. The house itself is quite silent, everyone's out. Apart from Cassian it appears. As you walk past the study you see the door ajar, he looks busy working inside.

You slide into the room and sit in one of the chairs on the other side of the desk to Cassian, before continuing to read your book. He looks busy, you don't want to distract him so you stay quiet. He glanced up as you entered and sat down opposite him. Maybe he was confused why you suddenly sat silently opposite him or maybe he understands your reason.