The pause gives her plenty of time to question her own choice to acknowledge the shared moment in the past and also her way of trying to bring it back to mind. There's whole lot of awkwardness she at least doesn't have to worry about showing on her face because of the mask as he puts things together.

But then he recognizes her and she gets to be vaguely glad that her face is still covered in a whole new way. Dealing with people seeing her in both forms was always weird when she was comfortable with her body. Now it's a whole new set of potential weirdness. At lease he seesm kind about it? She doesn't even think about him being complimentary.

"Thanks. So do you? Pink suits you. I'm a little jealous of your mask?"