[Toshinori is just assuming everything but what Aizawa is actually thinking.]

Aa, don't worry, I can make plenty more. You don't have to worry about running out! [But if it helps, he does finally grab Aizawa's free hand, giving it a firm and supportive squeeze; this came a lot easier when he's dead set on silly comforts -- there, there, the bento will continue being made, it says. With less loud determination:] ... It's nice to make something for someone, really.

[Is he going to turn into a housewife overnight?

Truly, his calling in life. Not symbol of peace, no, maker of cat onigiri. It's just. It's been a long time since he had real company like that. Tsukauchi, maybe. A truly good friend, that detective...! The last few weeks have been admittedly... too good. It's why he didn't expect it to last...]