She’s cringing over how she acted?

Nope. Pissed off expression at Mickey, obviously.

Damnation

She obviously witnessed the "curvy mouse droid" and became furious at Mickey.
And I quote from your comment on https://www.furaffinity.net/view/45677683/
"Minnie was pissed seeing her X3". end quote.

Right, still The Prof did that XD

Clearly. The "curvy mouse droid" showing up just added insult to injury.

Hey, here's something might not have noticed now: I found a way to further prevent inadvertent breakage of character: In the eye holes where I can see out, I've placed lenses from a pair of sunglasses into the eye holes, to prevent anyone, even children from looking into the eye holes and seeing part of my face inside the head. Also, because the black sleeves may slip up, exposing my wrists, I cut the leg part of a pair of black socks and used those to keep my skin from being exposed.

Damnation

Well, it's a little something I learned from this video:
https://www.youtube.com/watch?v=XyKaCprJUXc