The False Saintess Overturns Her Fate - Chapter 43

i really don’t understand why the prince treat fl like this, he consider her the real saintess but he do everything to bring her down i really don’t get what is his plan, does he knows that the emotional affects her power? does he wants her to have a symbiotic relationship with him by trying to become her “hero” so that she will get chained emotionally? (if so he is doing a bad job)