This is my first tab, so if it sucks.... I'm sorry! Also, this is completely by 
ear. This is from the Polar Opposites acoustic EP.

           *****************--Sick Puppies--*****************
           **********--Don't Walk Away (Acoustic)--**********
           ****************--Standard Tuning--***************

The Em in the verse uses 4 fingers (like a G).
The Em in the chorus only uses 2.
   Em        C6        D        C        G
--(0/3)--  ---3---  ---2---  ---0---  ---3---
--(0/3)--  ---5---  ---3---  ---1---  ---3---
----0----  ---3---  ---2---  ---0---  ---0---
----2----  ---5---  ---0---  ---2---  ---0---
----2----  ---3---  -------  ---3---  ---2---
----0----  -------  -------  -------  ---3---

Strum pattern is D D U U U D U for the verse.

Verse 1:
Em               C6                           Em
 I'm feelin' so afraid 'cause everything that I do lately
  
C6              Em                    C6                          Em
 makes you angry. I've never felt so ashamed. It really felt like you and 

         C6                
 me were getting better...

Pre-chorus:
D                       C         D                      C
  I hope that you still want me.     I hope it's not too late.

Chorus:
Em          C       G               D
Don't walk away and leave without a reason when

        Em          C        G           D
there's too much to say that hasn't been said.

  Em         C              G         D          C              D
I know I was wrong and, I'm sorry for making the same mistake...

             Em   C        G        D       Em       C       G        D
Don't walk aw-ay -ay -hey -ay -hey -hey... -ay -hey -ay -ay -ay -hey -hey...

Verse 2:
Em                      C6                     Em              C6
  Can you really throw away all the times that we've recovered one another?

Em                      C6
  And, I know I make it hard, but how long should

  Em            C6
I pay for being unappealing?

Pre-chorus:
D                        C        D                      C
  And, I know you wanna' want me.   I can see it in your eyes.

Chorus:
Em          C       G               D
Don't walk away and leave without a reason when

        Em          C        G           D
there's too much to say that hasn't been said.

  Em         C              G         D          C              D
I know I was wrong and, I'm sorry for making the same mistake...

             Em   C        G        D       Em       C       G        D
Don't walk aw-ay -ay -hey -ay -hey -hey... -ay -hey -ay -ay -ay -hey -hey...

Bridge:
D                     C                    G
 Wish I could take it back, but you know I can't.
  Em               D
I hope one day you understand
Em                    C
 No this can't be the end ((this is the end))

Instrumental:
Em  C  G  D  x3

Em   C6
   I know I make it hard....

Chorus:
Em          C       G               D
Don't walk away and leave without a reason when

        Em          C        G           D
there's too much to say that hasn't been said.

  Em         C              G         D          C              D
I know I was wrong and, I'm sorry for making the same mistake...

            Em  C  G  D  (as necessary)
Don't walk awa------------------------y!  ((Don't walk away)) ((no, no, no))

D              Em (strum once and let ring out)
  It felt like you and me were getting better.


**This sounds close enough to right to me, but knowing my advanced skills 
(sarcasm)... It's probably not. Oh well, enjoy!**