What fascinates me most about Celestine is that everything she does shows she is very much a villain, but carries herself in such a manner that even the audience might forget that fact at times.
Celestine is very supportive of Clara, encouraging her to step out of her comfort zone and showcase her talents to others and especially to Clara herself. However, Celestine doesn't do this (just) because they are friends, but because she could become another asset to Celestine and it makes Clara a more 'interesting person'.
You can't convince me for a second Celestine is not aware of Clara's affection for her. She knows and doesn't hesitate for a moment to use it to keep Clara close and in her care.
Same goes for Julia. Celestine humors the girl's behavior because Celestine expects Julia to be a competent schemer, someone she could use later to her advantage. And boy is she disappointed when it turns out Julia is nothing more than a jealous brat.
Celestine is not evil per se. She nurtures those around her that she deems worthy with care and attention. But she definitely is a villainess, and I love her for it. ♥
Sorry for the rant... 👉👈