I dedicate this tab to my beloved girlfriend who really loves this song.
Here's a YouTube link to the song with lyrics: https://www.youtube.com/watch?v=zEcYKPm3mKQ
In the DnB refer to the strum pattern provided. However it's fine to improvise and strum to your own ability.
(Em) chords in brackets are optional.

[Intro]
           Em
Oh I could be
              D
All it is you need.
   (Em)    C                        Am
Cos we are trying to find a way to feel.
           Em
If I could sleep
                       D
I'd dream of what we'd be.
   (Em)   C                           Am
But I can feel you slip further from me.


[Verse 1]
      G                   Am
Oh it makes it hard to be
                        D
When you are all that I want
          Em
But don't have.
         G                Am
And I'll run into the sea
                               D
Follow this heart that escapes me
           Em
It escapes me.


[Chorus]
        C
And i'm lost
D      Am        Em
Forget me, all I was.
      C    D    Am
And become everything
    Em   A
All I wanted.


[DnB]
Am C Em D
x2

[DnB with Chorus]
        C
And i'm lost
D      Am        Em
Forget me, all I was.
      C    D    Am
And become everything
    Em   A
All I wanted.


[Verse 2]
G                        Em
  Although it feels like heaven
                C
I can't wait forever.
                        Am
Old habits are hard to break.
           G
I'm losing faith.
             Em             Am
Maybe we're better off this way
N.C.
But I'm still


[Chorus]
C
lost
D      Am        Em
Forget me, all I was.
      C    D    Am
And become everything
    Em   A
All I wanted.