Kaimax wrote...
Crazy doesn't mean Yandere.
Yandere = Crazy for love, Keichi's crazy isn't love...
don't forget that the "dere" part completes a yandere, without that, it's just plain crazy psychopath.
Well that is true. But he does love his friends, so there is probably some other crazy Japanese word for going insane over friends. Maybe just plain nut case.