God and Lucifer would've actually gotten between the two of them, how screwed up is his life that he values multiple people?

It's optimistic of Istredd though that in the moment he'd have been able to notice. If Lucifer thought Kyle was going to stab him, he'd damn well make sure Istredd was unaware, in this particular circumstance anyway. Others, well. He'd need Istredd to know.

"He was drinking and depressed, among other things, but I'm not going to share his intoxicated rambles."