Why the hell would she not just leave her glasses off, maybe she can't see in the prince's direction because of his aura but she could at least see other's around her? Or wait for another opportunity to see the queen's aura...case in point, if she just left her glasses on her eyes would've seen the queen's aura already. Now if she takes her glasses off to look at the queen and then puts it on to still see the prince, it looks weird.
Prince acts really juvenile, it's absolutely a low blow for him to attack her looks directly when she was already feeling down...if he just said something about her facial expression or posture, sure, but she already didn't feel beautiful in her outfit initially. If someone shotgunned me with all that when I was dressed up and then went "haha, jk" it really comes across as fake. Way to stroke his own ego but then take a jab at hers, what a narcissist.