[ Souji lowers his head, trying to remember every interaction he's had with Yosuke. He's not as close with Yosuke as Yu is so there's not much that he could say, but he shakes his head. ]

You can't rule out the possibility. [ He looks at Yu. ] I've never seen Yosuke act like that around me. Granted, I haven't been around him as often as you have, but it's something to consider.

[ He looks down once more in thought. ]

... You should speak with Keigo. He's known Yosuke the longest. He might know what this all means.