What song would best describe Harry and Hermione's relationship?

Depends on your fanfic and how the story is going these are a few songs i thought of. I hope this helps you.
Realize Colbie Caillat- (recommend strongly)
Happy- Leona Lewis
Invisable-taylor swift (because of Ginny and Cho)
i'd lie- Taylor swift
Anywhere But Here-SafetySuit
If everyone cared- Nickelback
Hanging by a moment-Lifehouse
*listen to the songs and pick one. I tried sorry if none of them work for you.*

I really love these songs for Harry and Hermione's relationship. Give em a listen and see what you think. Hope that helps!

1. Undiscovered - James Morrison
2. Love Story - Katharine McPhee (100% Harmony)
3. If Everyone Cared - Nickelback (about Harmony, Harry's life and the state of the wizarding world)
4. Telling the World - Taio Cruz
5. True To Your Heart - 98 Degrees
6. Addicted - Enrique Inglesias
7. That Girl - Stevie Wonder
8. The Beautiful Ones - Prince

Hmmn..

Never Knew I Needed- Ne-yo
Stolen- Dashboad Confessional
Everytime- Janet Jackson

Now, this may sound EXTREMELY cliche, howevcer stay with me.
Teenage Dream; the cover version by Boyce Avenue.
Listen to it a few times, and personally I believe it really fits them.
Lyric examples:
-)"I knew you got my when you let your walls come down"- 0:20... In the Half-Blood Prince, Hermione openly cries to harry about her relationship woes, and allows Harry to do the same to her (about Ginny).
-) "Before you met me, I was alright but things we're kinda heavy..." 0:26. Harry's life was hell before he came to Hogwarts. Of course, things could be argued that they got worse, but at least he found friends. Hogwarts was truly his home (with Hermione there!!!)
-)"Let's just talk all through the night, there's no need to rush. We can dance until we die, you and I will be young forever." H and Hr's dance in the tent. 0:39
Basically the Boyce Avenue version is more tailored to fit the 'Best friends falling in love' scenario.
Listen to it all and you won't regret it! :D
link

Never Alone BarlowGirl
Parachute Ingrid Michaelson
Let's Be friends Emily Osment
O'Children Nick Cave (Obviously)
(video listed below is not mine :( )

I believe that fire and the flood by vance joy best describes the relationship between harry and hermione.