I dont believe that, I think you can like a fanfic even if it's not about your favorite pairing.
On another note with the fics, I just read HighSpeed0516's fan fic "Kissing the Wind." It's NaruSaku, but it has some NaruHina in it too and it's like on point with whats happening now on the manga. So far there are 4 chapters, so I hope you guys check it out to support our friend, even if it may not be your favorite pairing. I think so far it's an excellent fanfic and that it's really thought out.
Heres the link. http://www.fanfiction.net/s/4080304/...ssing_the_Wind