"People don't surprise you, but they do make you kind of incredulous, huh?" It's kindly meant. Then again, Hermione's efforts to understand her changes and her confusion about Ruby's entire world(s) situation aren't malicious by any stretch, but they still sting a little.

Past tense is never a good sign, and there's a flicker of concern before the subject is rolling on and she wonders -- should she just let it go, rather than ask? Maybe. Ruby tried to talk around enough of her own issues. No need to drag someone else through their own grief.

Instead of addressing it exactly, she picks up her cloak, rich red with velvet brocade, and holds it out. "The colourful kind that defines your storybook persona. It keeps me from changing if I wear it during Wolfstime."