[He definitely picks up on the confusion, but he doesn't outwardly register it, because that would mean admitting he's manipulating what he's putting out of his end. And that means talking about his actual feelings, and that's never an option Momo wants to put on the table unless he absolutely has to.

For now, he just nods to the question, continuing down the tunnel they're in.]

Yeah, that must be the root of it, it's never been like this in the tunnels before. It's not even a case of pure not working, it's backfiring and coming out too powerful for a lot of people instead...so that's even more dangerous down here. Makes the risk of someone being exposed to the infection bigger.

[Since trying to get rid of something in a controlled, targeted way and accidentally smearing it across one side of the tunnel can be a very important difference.]