[As always, she's a better instigator than she is a finisher, too quick to act without thinking. Franziska isn't making a lot of sense, to her, so Nanami puts one hand on her hip and brandishes a figure, imperious in her retaliation.]

What are you even talking about? My shadow? Not many people even get the privilege! Maybe you don't deserve it!

All this because your brother let you down?

[Implied: Maybe you don't deserve that, either.

It's possible that she isn't really talking about Franziska anymore.]