Shinji might not want to rub Kyoko's nose in her mistake, but she was more than willing to do that all on her own. Really, she'd rest a little easier if he'd just give her a proper scolding about the whole thing, but he won't! So her need to atone is even greater! But he won't let her do that either! It's awful.

Coaxing an adequate amount of ice from the replicator does take a bit longer than grabbing their first aid kit had, but Kyoko still returns pretty soon, a load of it neatly tied up in a kitchen towel. "Here--ah, but it's a good idea to elevate it too, right? Pillows, then, pillows--" Let her just set down the ice and go fetch some!