King dumped him into a dilapidated building and called it an orphanage, he had to take on a debt that runs deep, people only want him for the power he never knew he had, going a complete 180 from their first impression at the first glimpse of being useful, and now the king is forcing him to give up the building that was dumped on him despite being able to pay the debt.
I'd prolly have the same response to be honest. xD
Just go tell the king to pound sand.