[Don't make her stare you down...]

I think that her wishing to worry or not is her own choice. That she worries is only proof that she cares about your well-being.

[Though...now that she really looks at him, a lot of the injuries do seem to be gone.]

....And how is it that you are accomplishing something like that? You were hurt before, were you not? You are healing? You can heal so quickly?