Both y'all and the writer dumb af, making this situation as if it's insanely complicated when the mom could've just secretly tell him straight to his face why she did what she did, like, people can have secret meetings without society knowing about it, she could have just secretly meet him and tell him that she actually loves him but she'll do all she did for his wellbeing, she certainly knows how intelligent he is and banishing him gives him the freedom he wanted so there's no risk of her plan going awry
This whole situation just feels artificially complex