@Magaso But she's always been great at improvisation. This still won't be much of a contest I expect. She reminds me of Alexander the Great from Boyfriend of the Dead.
How much you willing to bet the real reason is he promised her marriage or something and she's pissed he forget and/or she's pissed he's showing care to the princess while ignoring her.
@ryouhira I hate to break it to you, but princess isn't a loli. She tends to wear unrevealing clothes so it's hard to tell, but a couple of events have established that she has curves and boobs. Not extravagant, but definite.