You're not unreliable.

[Wataru's voice is gentle and kind, less rambunctious than it has been for all of this blustering. He's said something poorly and for Natsume he'll own that. Natsume is beyond up to his standards. That's not the issue whatsoever.]

I can see why you'd think that's what I mean, though. It's the opposite! Aren't I the one who can't take care of myself? You're having to look out for me and I don't like it. It's not how it should be at all.