Well now that you mention it, likely Candice could have won had Jenny made the F9 over Jonathan.

Nate goes F9 via idol
Purple rock to see who leaves, if Raro wins, F3 is Adam/Candice/Parvati and Candice is most likeable of the three. Jenny votes against Adam/Parvati for betrayal.

But her loss in the game was just the luck of the draw and her own mistakes. Sticking with Aitu would have been a clean, crisp game.