I think the song "Almost Lovers" is the most perfect song for the movie!
it's by A Fine Frenzy it goes like
Your fingertips across my skin
The palm trees swaying in the wind
Images...

You sang me Spanish lullabies
The sweetest sadness in your eyes
Clever trick

Well, I never want to see you unhappy
I thought you'd want the same for me

[Chorus]
Goodbye, my almost lover
Goodbye, my hopeless dream
I'm trying not to think about you
Can't you just let me be?
So long, my luckless romance
My back is turned on you
Should've known you'd bring me heartache
Almost lovers always do

We walked along a crowded street
You took my hand and danced with me
Images
And when you left, you kissed my lips
You told me you would never, never forget
These images

No, no, no

Well, I'd never want to see you unhappy
I thought you'd want the same for me

[Chorus]
Goodbye, my almost lover
Goodbye, my hopeless dream
I'm trying not to think about you
Can't you just let me be?
So long, my luckless romance
My back is turned on you
Should've known you'd bring me heartache
Almost lovers always do

I cannot go to the ocean
I cannot drive the streets at night
I cannot wake up in the morning
Without you on my mind
So you're gone and I'm haunted
And I bet you are just fine

Did I make it that
Easy to walk right in and out
Of my life?

[Chorus]
Goodbye, my almost lover
Goodbye, my hopeless dream
I'm trying not to think about you
Can't you just let me be?
So long, my luckless romance
My back is turned on you
Should have known you'd bring me heartache
Almost lovers always do...

do you think this song is perfect for it? if you dont tell me what song is..but it cant be one that was in the movie (: okayy.