love the way you lie by rihanna and eminem..
or perfect two by auburn(only sumtimes)
or even replay by iyaz
*even tho a bunch of variaty...all sort of same*
There are so many songs which can be related to Phoebe and Cole... Right now the songs that cross my mind are Shattered from Trading Yesterday, Set The Fire To The Third by Snow Patrol and Iris from Goo Goo Dolls... not very 'happy' songs, but I think they describe quite well their relationship..