She makes that expression when she is informed no one knows who she is. Just imaging the person that you where created to be best friends with, not only abandoned you, but worst of all just forgot about you, and did not even mention it to her other friends, except these where actual friends, not toys which is what Spinnel was to Pink. And to just rub salt to the wound that person doesn't even exist anymore. RIP Spinnel

Twintails are clearly always the best option.