[Izaya feels that tension. He frowns and pulls away from Shizuo somewhat.]

What?

[Maybe he sounds a little defensive. No, he doesn't know, but what he does know is that this was his vain effort in trying to 'protect Shizuo'.

His eyes roll to the side.]

I've never heard you actually in pain like that before. I've always been too far away.

[He pulls away from Shizuo a bit more, until a few inches are between them. Now. Now he just looks confused.]

I thought I was protecting you. Like you want to protect Zelda.

[See this? This is a child's confusion written on his face. He scratches his cheek absentmindedly and...Really just looks pretty lost.]