Intro:
C--Em--F--Dm-G- (Dm and G are half the timing of the other chords)

C                                   Em
The city of angles is lonely tonight
                                F
Keep myself alive by candle light
                                Dm
Say she cant love you like I do
                 G                  C
Look me in the eyes and say it's true
                                Em
I ask myself, is this love at all
                                  F
When I need you most you let me fall
                                       Dm
I'm always here at the side of your stage
                    G                   F     G
Let you live your life and pretend I'm okay
 Am
(Don't you know that this is wrong?)
     G    F
I'll be okay
     G
I'll hold you close we'll stay forever

C             Em                       F
I don't understand why you're leaving me
              Dm             G                   C
I don't understand why without you I can't breathe
                             Em
Please don't, don't leave me here
                               F
Take my hand and bleeding tears
                       Dm
I don't understand why you can't
    G          C
Take me with you

                             Em
You can pretend I don't exist
                                         F
But you'll see my face every time you kiss
                                        Dm
I hope you hurt and your walls fall down
                      G             F    G
When you hear the sound that I'm okay
Am
(Don't you know that this is wrong?)
     G     F
I'll be okay
          G
You can't hold me down, I won't stay forever

C              Em                      F
I don't understand why you're leaving me
              Dm             G                C
I don't understand why without you I can't breathe
                             Em
Please don't, don't leave me here
                           F
Take my hand and bleeding tears
                       Dm           G
I don't understand why you can't take me with you

Em             D
I watched you leave
            G
Walk away tonight
                 C                Em
And I'm letting go for the last time
                         D
And through the tears I say goodbye
   C
So breathe in, breathe in, breathe in, breathe out

C             Em                       F
I don't understand why you're leaving me
             Dm               G                C
I don't understand why without you I can't breathe
                             Em
Please don't, don't leave me here
                           F
Take my hand and bleeding tears
                        Dm           G          C
I don't understand why you can't take me with you

I don't know how you want to end it, but if you keep going the chords should be the same 
as the Intro.