Vyse and Izio relation didn`t beging that good, in fact, Vyse original intention was to use Izio for his goals since his kind need of a human link to remain on earth, even though Izio knew this, he still supported Vyse, and little by little, he reached the dragon soft side and earned his respect and admiration

fake screenshot i did some time ago ^^ an impresed Vyse discovers that he may not know as much as he though he knew about humans