These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Fridge Brilliance: Fans thought Crystal was foolish for using the love spell on Graciella rather than Zane, but if you think about it, if she did use it on Zane, Graciella could have just pulled rank and made Zane marry her anyway, but if Graciella doesn't want to marry Zane anymore, then Crystal stood a chance with him. (At least in her mind.)