[Aubrey isn't a little kid. She's Armin's ally and Eren's...something. If the stakes were higher, he might play along and ask for forgiveness later. Not that the stakes aren't high - Mari still might know something about Eren - but as of right now, it feels safe enough to push just a little more...]

Mari, with...all due respect. [He politely inclines his head as he says this.]

This world can be a dangerous place, and...it's really best if we're all prepared for what might lay around the corner. You never know when you might end up alone. It's the ugly truth.