"If it was up to you, you wouldn't have talked to me at all." Oh don't worry, the sting is already there, Istredd knows him well. He says this very blandly, without any emotional tone either way, stated like a flat fact.

"Urianger is better at arcana than me, but he wasn't himself." Istredd will maintain that he was himself, as much as someone could be. If that information was helpful, it should have been passed on to someone who could have done something. He just stares at him but furrows his eyebrows when he mentions Caitlyn. She didn't tell him, clearly. He sits cross-legged, his usual poise, hands in his lap.

"Why did you message Caitlyn?" His partner in sanity, yes, he can only assume she was confused to be dealing with Lucifer in the midst of that. He'll have to apologize to her later.