The Dragon Queen Malificient was not receptive to Tulip's suggestion. Unlike Tulip, the Queen knew a lot more about the true power of a prophecy. She treated it as nothing more than truth, plain and simple.
Tulip may feel nothing for the Queen right now. But who's to say that it won't change in the future? It could very well be possible that Tulip would gain hatred and anger for the Malificient Queen in the future. After all, she did imprison her three mothers and burned their house down.
The Queen also did not like to live a life filled with caution and worry. If Tulip lived somewhere in the world, then she would always have to worry about having her backstabbed out of nowhere. She didn't like that. She would turn paranoid.
'Please. Let's stop this nonsensical killing. I will not become your downfall!' Tulip tried to convince the Queen.
But the Dragon Queen Malificient had other plans.