Hormonal? Yes. 13 years old? Not since before the original "Star Wars" came out (long before it was relabeled "A New Hope" or Greedo shot first.;)

Personally, I don't understand Will hate at all, unless you take it as an unconscious acknowledgement that Will and Elizabeth are in some fashion rivals for Jack's affections. As for getting meaner when one doesn't get one's way, well, it's a good thing most of us slashers aren't like that. I guess this means we'll have to go easy on the gloating when J/E dies its expected death. This is Disney after all.