>>45445220>Her entire personality is being bubbly and cutesy.No, her entire personality is posing as cute and being full of herself. Look at her first quote from Master EX you've posted:
>My name's Whitney, and I'm a Gym Leader! Ain't I a cutie?! Try not to get too infatuated!No "cute person" would actually call themselves cute and constantly point out everyone falls in love with them.
>I bet you're happy, huh? After all, I'm such a cutie! I'm lookin' forward to more adventures today!She implies that just looking at her should make you happy.
>I mean, how come everybody doesn't cry when they lose?Ironically, the fact that she cries is more of an indicator that she's a bully than anything else. It's not a "cute cry", as a child would cry. It's tears of denial and anger. She's prone to throw fits when her superiority is questioned in any way.