[Shun's already starting to get a bit of an impression of what Ren said earlier about Fubuki acting differently, but for the moment, it's probably best to adapt to it. Though he does let out a faint sound of annoyance as he lets the back of his hair drop again.]

You're going to need to talk as well if we want to fix this, because it's coming from you. [He might as well be straightforward about that part - Fubuki doesn't seem to have been around the others too much in the last few days, so it's entirely possible he doesn't know about any blight on his own person.] Obviously it isn't just your own survival that makes "that side of you" come out.

[It's his best starting guess based on what he's heard and the timing of the blight.]