This is in the key of Bmaj I'm pretty sure.  The progression is pretty 
straightforward throughout the song.

Intro: Bsus2 / E / F# / B

Verse 1
Bsus2          
Woke up this morning
                B
And I heard the news
E           F#         Bsus2  B
I know the pain of a heartbreak
B            
I don't have answers 
               E
And neither do you
           F#          Bsus2  B
I know the pain of a heartbreak

Chorus
              E      B
This isn't easy
              F#     B
This isn't clear
                    Bsus2    B
And you don't need Jesus
             F#    Bsus2
Til you're here
          B              Bsus2
Then confusion and the doubts you had
E           F#
Up and walk away
          B   Bsus2
They walk away
E            Bsus2
When a heart breaks

Verse 2
I heard the doctor
But what did he say
I knew I was fine about this time yesterday
I don't need answers
I just need some peace
I just need someone who could help me get some sleep
Who could help me get some sleep

Chorus2
This isn't easy
This isn't clear
And you don't need Jesus
Til you're here
Then confusion and the doubts you had
Up and walk away
They walk away
When a heart breaks

This isn't easy
This isn't clear
And you don't need Jesus
Til you're here
Then confusion and the doubts you had
Up and walk away
They walk away
When a heart breaks