I think that Fai and Kurogane are 更多 of a couple than Kurogane and Tomoyo. Yeah... she did close his mother's eyes when she died and sent him to another universe and all but Fai and Kurogane have traveled all the universes together. Yeah... and Devoting your life to sucking on on your best freind's neck and cutting off your own arm isn't just being freindly.... (psssshhhh.. yea right!!!! they are toooootttttalllllyyy a couple:D)Don't get me wrong Kurogane and Tmoyo do make a cute 轿跑车 but... it's just... have 你 seen how short she is compared to him???? i mean come on!!