[ Despite the fact he knows what Erwin is like, a little, he still relaxes his shoulders when Erwin tells him he doesn't bear them ill will. Even if it was a lie, it's one Erwin would be willing to play to, and that's good enough.

... He's not that skeptical of Erwin, though, to be fair. It just helps to know there's additional reasons. ]

I know. I figured that was why you told him before we even came over here to ask.

[ He takes the handkerchief but doesn't use it, despite the fact that now he knows the wetness in his eyes was noticed. Not so successful at holding those back, it seems. ]

She's pissed. She's not gonna get the chance to kill you, either.

[ Between Levi and the fact that while Mikasa might be a murderer like Jean, with countless Yeagerist Scouts on her hands, he's not going to let her stain her hands with Erwin's blood. ]