Animes with love trianlges? :D

Does anyone know any good ones?

I am not really into the children animes with them (like the magic-girl type) - I like animes more like NANA, even Vampire Knight I guess was more mature. And peach girl...so nothing too kiddy or too adult I guess haha^^

So far those are the only three I've watched with love trianles that were one girl and two guys.

I don't like love trianlges with two girls >_< lol