She ignores his order to stop pitying him. Of course she understands his sense of pride and the desire to not be pitied. But there are things you can do, and things you can't do, and turning off one's feelings fall under the latter.

"Actually, Nahida says this balm will repair the cracks. I don't know how it's going to feel, though." Hurried healing like that might just feel like more suffering. Hopefully, though, it won't be bad. He hasn't yelped or hissed in pain yet, so she takes that as a positive sign and continues to apply the salve.

"I realize I'm the reason your body's in this shape. That's why I'm trying to take responsibility."