Actually, when Blaze came to the auction as a bargaining chip, she was already somewhat aware of her own situation, and the cub had felt all the malice from this world just because she was a mutated Phoenix.
Although later on, Ainsley provided her with all the resources she needed, and Axelle also took care of her with all of his heart, Blaze still had a little regret and resentment about maternal love.
Is she really such a monster until her own mother didn't want her and abandoned her, sending her to the hands of the humans?
No beast with pride wanted to be kept as a pet or a contracted beast of some humans.
This is why tamers are people with the best chance to make contracts with the beasts because beasts have their own pride.
Sometimes, they would rather die than surrender to the humans.