The description of how Fever felt as the part of her that wasn't truly her took up so much space she had to make herself fit explained so much of the tension in the woman's soul. It's not a feeling she knows for herself, but she can feel in Fever just how much of an impact it has had.

"That would drive anyone mad."

Like a painful abscess, filled with something poisonous with nowhere to go. It must have hurt so much more than Fever let her feel, not that her empathy has been particularly hard on her what with the vastness of this space.

"I'm glad you can breathe again."