[Tania]

Opening Credits: Underworld- Spoonman
Getting Out of Bed: Global Goon
Ordinary Day: John Tejada
First Kiss: U2
First Date: U2
Falling in Love: Sigur Ros
First Love: Do Make Say Think
Fighting with Significant Other: Fast, Hard Techno
Breaking Up: probably a mix between sad and upbeat songs
Heart Broken: MRI
Getting Back Together: Junior Boys
Rainy Day Spent Indoors: Do Make Say Think
Regretting A Mistake: Rythm and Sound
Day Alone Thinking: Bell Orchestre
Hating Someone: Fast Techno
Secret Crush: Old Colombian songs
Long Drive Alone: Boards of Canada
Confused About Life: Air
Hanging Out With Friends: Daft Punk
Learning Something New: Animal Collective
Mental Breakdown: The orb
Wondering About Future: Caribou
Laying In A Field at Midnight: Do make Say think
Leaving Home: The Arcade Fire
Losing Hope: Aphex Twin
Missing Someone: Do make Say Think
Letting Go: M.I.A
Feeling Like You Don't Belong: Yeah Yeah Yeahs
Make You Feel Better: Billy Idol
Flashback: Deep House
Deep In Thought: Low
Party Scene: Underworld-Pearl's Girl
Sex Scene: John Tejada
Marriage: The Band, Sigur Ros
Growing Old: Kraftwerk
Reflecting On Your Life: Do Make Say Think
Death Scene: Underworld-Tongue
Closing Credits: Underworld-Dark Tain

I know I used the same bands several tmes, but they rock, so there.
if you havent heard them, check them out!