If you've seen what she has seen and done what she has done, every day conversations feel mundane and insignificant. She's gotten so wrapped up and immersed in death, that she's forgetting what it's like to live. At least live a normal life.
I mean, picture trying to have a conversation about baking pies when a week ago you hacked a couple of dudes up and baked their flesh into a pie.
Girl damn near has a thousand yard stare as she talks to "normal' folks and I think that's a good acting decision by Maise.
Just like from The Wire, "Mike ain't Mike no more"..