[He's insulted regardless. Of course he is, who wouldn't be when they're being told by a total stranger they shouldn't even exist? And she's sort of right too, so on top of being insulted he feels discomfited.]

I'm not gonna pretend I know how the magic keeping me together works. It just does.

[It's not as if he's a wizard, geez.]

But I wouldn't be standing here talking to you if grass couldn't be alive. [Sentient, he means sentient.]