Actually most of the time, Japanese people won't openly say "I love you" to his/her significant other. They believe that actions speak louder than words. In what I'm thinking, the person shoud just say "I love you" out loud when there's a really dire situation, and he/she doesn't think that the person gets what message they're trying to get across.
Of course, this is coming from a non-Japanese person, so if you wanna be sure, wait for Yuy-san.
SHITSUMON GA ARIMASU!
=> Yuy-san, how do you feel about being shipped back and forth into time and space through fanfics? One day, you're on high school ground, the next day you could be a knight, next you could be 35 and next you vould be 7. And how do you feel about the things you and Relena are made to do (like being mercenaries, or fighting each other or...um...

, never mind...ask what Raspberry-san asked!)? And alternate pairings, what's you r reaction. Personally, I don't like reading them... how bout people here?