If someone had said that to him, the prince would have ripped their head off. Then, as his signature move went, throw them out a glass window. Preferably onto a sharp and spiky bush, or maybe some good old-fashioned broken stone. But the palace was well-kept, so usually they just fell on the mosaics decorating the ground around the palace, 

Alas, Frey's Achilles heel was the dark. And he was never good at concealing the evident fear, the obvious panic running and pulsing through his eyes. He hardly heard what Asbel said at all, only registering something about being cruel. At that, topaz eyes rolled. "And what perks, I may ask, are there to being kind? Friends, happiness? Things you can buy with money. And I'll always have that." Even if he never attained the crown, he would still be wealthy. 

But it was still dark, and he was too busy hyperventilating to say anything else. Asbel was like a lighthouse in the dark. How ironic. "So what if I'm cruel and sharp? It's so much more relaxing." If he was nice, he would have to be very thoughtful about what he said. 

Despite his words, Frey had been nice to Aren, so the prince was more than capable at it. Maybe it was even how he truly was, beyond his untouchably demonic exterior. But nobody would know that. Only the oracle and Lucian, his older brother's, dragon. 

And he had sworn them both to secrecy. "...What is it you want, Quack?" He mocked. "Or do you not ask for anything your owners tell you not to have? Must be nice to be their little pet, eh?" Frey has seemed to temporarily overcome his fears simply to mock the phoenix.