Yes, it's a complete and utter stereotype but sometimes if you look at basic media that caters to one sex (romance novels, or hentai, for example), the bubbly girl or mysterious, edgy guy comes up A LOT. Or the manic pixie dream girl vs. brooding, angsty dude.

I'm not saying people want this in real life necessarily either, but these archetypes seem to have an enduring presence in modern media.