[it's definitely not Chuuya he's angry at, and some of that cold anger fades when Chuuya speaks again]

Yeah. . .?

[it's sad, in a way. . . that even with Dazai and Ayabe that no one has ever told Chuuya they cared about him like this before]

You don't have to be strong to be worth protecting. [. . .] You're my friend.

[regardless of the things Chuuya has done in the past]

And real friends don't need a reason to protect each other. No mutual benefit or prize or reward.

I just want you to be safe and happy.