[Katsuki is trying so hard lately but somehow Katsuki passing him a towel to dry puts him a little on edge. He's so used to Katsuki losing his temper so he was almost expecting a blow up. Now he's just ... a little anxious.]

I'm sorry... I don't want you to think that I'm ungrateful or anything like that, Kacchan.

[Again with the sorry. But Izuku does his work cleaning and drying the mess up together until everything is sparkling and put away again. Done!!]

There. That should be everything?