Because loving somebody won't make them love you.
That's just the way it is, sometimes, in Konoha.
Raidou loves Aoba who loves Kotetsu who loves Izumo who loves Anko who loves Kakashi who loves Iruka who (still) loves Mizuki who loves himself to death…
Somehow, Raidou finds himself at the beginning of that cursed chain. Or so he thinks because…
Raidou is loved by Genma who also loves and is loved by Hayate who is loved by that mysterious Anbu-chick who is lusted after by Jiraya who is secretly loved by both Orochimaru and Tsunade…
And life goes on and on and on. And nothing can be done because Love just don't come easy.
Did I mention Sasuke who loves no one but is loved by Sakura who is loved by Naruto who is loved by Hinata who is loved by Kiba who is, albeit veryyyy secretly, loved by Shino… ?
Love is somewhat cruel in Konoha… especially for that poor Shino who is loved by no one but his bugs. Or is he?