[For all his other, numerous flaws, Erwin is being genuine when he says he bears them no ill will. As long as this world doesn't come under threat, he's perfectly content to let it keep spinning as it has, and let the kids live out their extremely complicated, messy lives. Preferably without involving him in their drama.]

I'm not worried about that in the slightest.

[Erwin shakes his head ruefully.]

That's not even the first death threat I've gotten from an Ackerman. I'm sure it'll work out fine.

[He's 2 for 2 with Not Getting Murdered by Ackermans. It'll work out.]