[He stares at the screen for a moment, tightening his hold on her.]

I'm sorry.

[That she saw it, that she was so obviously scared. That she was afraid now.]

You think he'll punish you for this? For what? Knowing that thing was once a person? Wanda, you didn't do anything wrong. And we'd never let them hurt you for it. I'd never.

[Not for anything. Even if he hadn't proven himself to be very good at that vow over the past few months.]

If they were upset over it, sounds to me like it would just mean they had something to do with making that thing what it is.