I do actually really like the idea of Zeb finding out Kallus has feelings for him when they're being kept hostage by some ISB agent who is taunting Kallus about defecting and ruining his life. And of course they notice and comment on how weirdly protective of and attached to Zeb he seems. And they have this moment of grabbing Zeb's face in a rough manner to get a good look at him like "what is it with you and this Lasat?" Then they see how Kallus' claw clenches and go "oh, I see 😏 you're in love with him, aren't you" with a judgey smirk. Zeb is about to scoff at the absurdity when he notices Kallus looking deadly pale and being uncharacteristically quiet