Natasha leans back against him slightly, a nudge with her shoulder. He'll be able to feel how tense she is. She hides it well, but it's clear she's stiffer than she looks as she watches the murders play out again.

It still doesn't make sense. She did this. But she's done worse, and she's done it when she didn't have the excuse of being a child, being threatened with starvation or with being killed herself. It seems impossible to imagine she'd feel more guilty about this than those...

It's a long moment before she winces, the logic coming together.