Ah, okay! Well, that's prefectly valid. :D Kyouya honestly doesn't see it as betrayal - for now, anyway. ;) He's looking at it from a logical and critical standpoint which is 'Tamaki's being an idiot, even after it's been pointed out to him that he has feelings for Haruhi. If he's not going to do anything, I will.' Which is one of Kyouya's biggest flaws, I think - looking at things pragmatically rather than emotionally. But on a subconcious level (what with his constant assuring himself that he doesn't want Tamaki finding out because it would 'ruin his plans') he is feeling guilty over it. Which is something I should probably go into in some more depth ICly.

Your feedback has definitely helped!