Your brother is your family. [Prefect counters, as if it can only be true of one of them, and Barron needs Cassel so it has to be Cassel.] But yes, I care very much for him. I hope that--

[He stops himself, mid-sentence, because he almost isn't sure what he hopes for now. He was going to say he hopes that he and Barron stay friends after Barron graduates, but he's already decided that he's not staying on the Barge beyond that, so unless he goes with Barron, it would be impossible.

It hadn't occurred to him up until that point, that he'd simply assumed that he'd be going with Barron. It's only talking to Cassel that reminds him that Barron has a life. A family. A girlfriend back home. What was the use of graduating if your Warden didn't leave you alone afterward?]

...I hope that he's happy, in the end. I just really want him to be happy.

[He creases his brow, and glances at Cassel again. Does he know what Cassel wanted from Barron? No, not exactly. Can he take a guess...?]

My guess was that you wanted him to care about you, without wanting to use you. But no. I don't know.

[Then he cocks his head, almost smiling again at Cassel's question.] We're in the middle of a conversation. How could I be lonely?