So I'm definitely getting some hard Yan vibes from Isabella but then, when Henry is her cuddly-wuddly-smoopy-woopy-huggly-buggly sweety pie and something hurts him it's all bets off. Funny thing is, I get this image of Isabella being this cool, shrewd, leader with a masterful grasp of economics and policy making, well loved and respected by all right up until something happens with Henry and then the crazy comes out.
Oddly enough, from what I've seen, Henry is playing up the chill Prince/King image, where he's all smiles and happiness and jokes and whatnot, right up until someone pisses him off. Then he gets off the throne, casually hands his cape to Isabella and gives her a smooch, draws his swordwand and then proceeds to wreck the shit out of said someone up and down the throne room with contemptible ease. Then goes back, gets his cape, gives Isabella another smooch and sits down, all while the court looks on in horror at the bloody smear that is whoever pissed Henry off.