About the Aurelion Sol part: that guy has always acted overbearing arrogant towards mortals and was/is belittling everyone.
Yes, because he is a cosmic being who is meant to be more than the Targonian's superweapon. That is the only escape he has from his masters.
I don't find the fact a little girl is talking down a being older then life itself, that literally made the stars themselves. A being who her people enslaved and used as a weapon, and whenever he tried to fight back, something he loved, one of his stars, is destroyed.
Zoe is not messing with an egotistical jerk, she's messing with an egotistical jerk who has suffered for thousands of years under her people's hands, has the power to be used as a galactic WMD, and who is slowly regaining his freedom and has a hell of a grudge against Targon as a whole.
Yes, i love it when she calls him a "space Doggy" to, because I doubt she'll call him that after he's free.