Birdy

Cowboy Bebop

Dragonball

Flame of Recca

Gundam Wing

Hunter x Hunter

Inuyasha

Mononoke Hime

Oddments

Outlaw Star

Ranma 1/2

Rurouni Kenshin

Trigun

Yuu Yuu Hakusho

Troubled romance
Not exactly the world's happiest couple: a reincarnated priestess and a half-demon. Not to mention that at this point in the story Kikyo wouldn't mind seeing Inuyasha dead.
 
Added: 12/28/08 From: Private Sale
 
Troubled romance