[The lengthy pause while Ren stares at the phone is somewhat telling even if Shun can't actually see what he's doing, and he's about to remark on it when Ren apparently realises that he's doing something not particularly communicative and comes back on.

Shun's heading down the stairs at this point, trying not to linger too long on the doorway to what was Fubuki's bedroom as he passes.]

Considering how much you fussed about the condition I came back in last time, I don't know if this would count as "fun" even by your standards.

[It's...a vague attempt at maintaining the humour of the question, though Shun's feeling it even less than usual this morning.]