sdio cares for kaname so much because kaname is a pureblood a higher levl than adio kaname is the haier to the thron and also when they were kids adio regected being フレンズ with him with out thinking
Well care isn't exactly the word, I'm 99% sure that Aido loves Kaname.*shivers* Creepy. But not as much since he loves him like a friend, I think.... (not that I have a problem with gays!) Anyway I think he cares about him because he needed a friend. But at first their relationship kinda sucked, really bad. He 発言しました he hated Kaname *cry* and only warmed up to him when his parents died, harsh...... He then 発言しました he loved him and vowed to help him and protect him forever. So he just really likes him, または his great liking/loving has become a small obsession. あなた be the judge.
I'm not sure that it was a natural friendship. He was kinda pulled into liking him and ended up realising that they were friends. But the 次 time they saw each other Kaname had changed. I guess he kinda lived with the uncertainty of not really knowing a real friendship.
Aido-senpai care so much for Kaname-sama because he was his first friend. Even though he was quite 人気 when he was younger, and the fact that he 発言しました he hated Kaname, Hanabusa was secretly lonely. He didn't have any guy フレンズ except Akatsuki, who is his cousin, and Kaname was willing to be his friend. Thus, the strong bond between Kaname-Sama and Aido-Senpai started. Yay Aido!!!! *Girlish Fan-scream*