No, actually, that is the very definition of hurt, Undyne.

[ He sighs, but it's not so much exasperated as it is thoughtful. Right here doesn't quite work, whatever mysterious location they're at, and he honestly doesn't completely trust his footing enough to fight on the roof. So. ]

You know, I haven't gone exploring just yet. How about at whatever new location has popped up this week? That'll be a quick way for me to learn the layout.

[ At least he likes to challenge himself? ]