Chords used in this song. 
They change up a little bit, but I'll make note of how to play them.

Cadd9 (x32030@1)GDsusp7 (320003@1) Em7  Em (022000@1) C (x32010@1)  D--3----3----3----3----0----0----2----| (xx0232@1)--3----3----3----3----0----1----3----|
--0----0----2----0----0----0----2----|
--2----0----0----2----2----2---------|
--3----2---------2----2----3---------|
--0----3---------0----0--------------|

Everytime you play a Dsusp7 without an Em7 after it go..

-----------------|
--2--4--2--0-----|
-----------------|
-----------------|
-----------------|
-----------------|

And when you play Em7, go..
--3--3---------|
--3--3---------|
--0--2---------|
--2--0---------|
--2--2---------|
---------------|

Intro: Cadd9-G-Dsusp7-Cadd9-G-Em7 x2

Verse:

Cadd9 (x32030@1)       G (320003@1) Dsusp7
This is the first time I've ever felt so alone

Cadd9 (x32030@1)    G (320003@1)      Dsusp7      Em7
When you said you'd stay, I believed you 'till the end

Cadd9 (x32030@1)   G (320003@1)    Dsups7
I'm sorry if the way I act is inconsistant

Cadd9 (x32030@1)      G (320003@1)   Dsusp7       Em7
With what I say and how I feel about you

Chorus:

When theres a D*, slide your fingers to the forth fret and back on the 6th and 5th 
string with all other strings open. 
Only strum the top three strings.

Em (022000@1)           D (xx0232@1)          Cadd9If (x32030@1)I could go back on the promises I made

Em (022000@1)   D* 
Then this life wouldnt be the same

Em (022000@1)         D (xx0232@1)    Cadd9 (x32030@1)  
This heavy burden I have in my heart

Em (022000@1)             DWould (xx0232@1)be lifted away

Verse 2:

Cadd9 (x32030@1)         G (320003@1)Dsusp7
You're not the same girl that I fell inlove with

Cadd9 (x32030@1)  G (320003@1)       Dsups7  Em7
I don't know what happened but you changed

Cadd9 (x32030@1)    G (320003@1)     Dsusp7
I'm gunna show the world that I can live without you

Cadd9 (x32030@1)    G (320003@1)     Dsusp7     Em7
I'm gunna show the world how strong I've become

*Chorus*

Verse 3:

Cadd9 (x32030@1)          G (320003@1)   Dsusp7 
You turned your back so take your first step, walk away now

Cadd9 (x32030@1) G (320003@1)        Dsusp7       Em7
When I look back at you, I can finally move on

Cadd9 (x32030@1)      G (320003@1)    Dsusp7
You said I wasn't mature? Well at least I'm honest

Cadd9 (x32030@1)       G (320003@1)     Dsups7           Em7
Now that you know who I am, how do you feel about yourself?

*Chorus*

Bridge: X2

During the D, play it like this:

3-0-3-2-3-0-3-|
2-2-2-2-2-2-2-|
3-3-3-3-3-3-3-|
0-0-0-0-0-0-0-|
--------------|
--------------|

G (320003@1)        C (x32010@1)           EmIf (022000@1)I could go back, I'd change one thing

DIt's (xx0232@1)how I put my trust in you

Bridge 2: *play intro* then..

Cadd9 (x32030@1)    G (320003@1)     Dsusp7
I'm wanna show the world that I can live without you

Cadd9 (x32030@1)  G (320003@1)     Dsups7  Em7
I wanna show the world

Cadd9 (x32030@1)    G (320003@1)     Dsusp7     Em7
I'm gunna show the world how strong I've become

Cadd9 (x32030@1)    G (320003@1)    Dsusp7   Em7
I'm gunna show the world

Repeat First Verse, and end :)