If she does react so poorly to losing, then I think her opponents should be gentler. True, she is a Gym Leader, but she's also an adorable young lady who's doubtlessly quite passionate about her position.

[Though if it's her job to pass out badges, then she should probably expect at least a few losses. No matter; he's yet to meet her, so he's hardly in the position to pass judgment.]

What was your impression of her during your meetings? I've found that women can change dramatically in the heat of battle.