She was crying in the beginning of the chapter, then Jinbe gives a motivation speech, then she wipes her tears and gets down to business.
Yet, she reacts when she notices that she's walking on the candy slug and then becomes emotional again. Don't see the reason why Oda would highlight it if it's not for the fact that she's reacting to Perospero specifically in a negative way. It's not reaching, I'm pointing things out that you can read as well.