@riflow I completely agree with you. There's no logic to what the mother did, given that we're told that she is a precog, and we saw Pryde change the future by having a single vision that saves her father. It'd be one thing if the setting was that, even if you saw the future, you couldn't stop it from playing out anyways, but that's not the case here. So we know that she could have had a vision of Pryde becoming evil...and then she just let it happen? That's a big wtf.
Also, the excuse of "oh, her sister is sickly/frail," is BS, too. As someone who has worked as a caretaker before, one of the most maddening aspects is that there's simply little you can do. She's the queen, not Tiara's doctor nor her nurse. Even then, you don't see doctors and nurses in a patient's room 24/7. No, once they've eaten, taken their medicine, been washed, etc., there's nothing else you can do to help them. While being by her side is great, it's unrealistic to expect for the queen to solely be by her side to the point of not seeing her other daughter in however many months or however long it's been. Also, since Tiara is a princess, wouldn't she have a million nurses and servants to take care of her? There's absolutely no reason why the queen couldn't have spared a single day to go see Pryde, even on special events.
You could even say she's neglecting her duties as a Queen by skipping these events. It's absolutely ridiculous that she didn't bother to go when a person was added to her family registry. That'd be weird to miss as a regular person, but as a queen?? You don't even want to see what sort of person has been added to what is essentially the next line of rulers of your country? She's just a negligent and irresponsible person, period.
@theilikepie I agree that the previous Pryde was psychopathic, but I could see why she'd order Stayle to kill his mother - because she was envious of their relationship, given that her own mother basically abandoned her. Plus, I could totally see it since in the original, she lost her doting father, her one source of love and comfort, at the age of 8, neglected by her mom, replaced by her sister, barely tolerated by her servants, and gossiped and ridiculed by her subjects? Yeah, that's an easy recipe for a neurotic mess.