Never in one million years would Shibusawa have thought of you as anything more than a friend. After all, that's pretty... hard for him to consider anyone. In his words, humans are predictable. So are you, to an extent, but not as much as others are.

He thought of something more of... a platonic affection. Something that he thought normal for people who are close. To like each other in the friend way so much that hugs might last longer and looking into each other's eyes for so long that you fear you might get lost in them like they're a void in space.

To you, he's just dense. And today, even more so. Apparently, he was paying more attention to your appearance today.

"Did you use more chapstick than usual? Your lips look glossier and less cracked than they usually are." Shibusawa means that in the nicest way.