Opening Credits:
Taking Back Sunday - Liar
This whole movie is.. fiction. Don't believe a word that's said!

Waking Up:
Oasis - Live Forever

Falling in Love:
Dj Tiesto - Lethal Industry

Fight scene:
Robbie Williams - Misunderstood
:D

Breaking up:
Paul Anka - Earth Angel
D:

Getting back together:
Good Charlotte - Girls and Boys
Sooo.. I like him for his cash and car and he still wants me back? Silly man.

Secret Love:
Jason Mraz - I'm Yours
Ahww

Life's okay:
Weird Al - Girls Just Wanna Have Lunch

Mental breakdown:
Death Cab For Cutie - Passanger Seat
Oh.. *adores song* too bad it does a bad job fitting here.

Driving:
James Blunt - High

Flashback:
Panic At the Disco - The Only Difference...
Not gonna type the whole title xP

Partying:
Jesse McCarthy - Take Your Sweet Time
.___.

Happy dance:
Weird Al - Weenie in a Bottle
xO omg.

Regretting:
Jack White & Alicia Keys - Another Way to Die
wow.. perfect?

Long night alone:
Bianca Ryan - Why Couldn't It Be Christmas Every Day
That's funny because I listened to that song all night alone the other day xD *dancedance*

Death scene:
Nightmare - The World
Death Note theme xDDD

Ending credits:
Bon Jovi - Bad Medicine