"Do you know," he rasps, "how utterly insane you sound?"

The words are not barbed as they often would be. He's exhausted. He knows Istredd can't handle the strike anymore than Lucifer, but the pain is mutual, because Lucifer is back in that hallway with Michael finding him, and the silence after was almost worse than that pain. He'd put up with Michael for longer than usual just because fighting with his brother filled the absent of anything from Istredd's end.

But he still feels it, that initial 'defense mechanism' of the Singularity. Or maybe he just feels the reverberation of what he did to Istredd, echoing back.

He's not going to feel guilty for it.

Mostly.

God, his head hurts though.

"I have to reconsider now, thanks," he adds, not meeting Istredd's gaze. 'Have to' because yes, he has a choice, but it isn't one, that's the whole problem. What he's willing to actually do for... revenge. "There isn't a choice." He pushes this, not as Free Will stripped from him, but that the other option is losing Istredd, and with that last bit of Lucifer's plans between their minds, he needs that understood.

He's not going to give it up either.