this sounds perfect to me.

half step down 

intro

   +   +   +   +     +   +   +   +     +   +   +   +     +   +   +   +  
e :-0-----0-----0---|-----------------|---------5-------|-----------------|
B :---6-----6-----6-|-----6-----6-----|-----8-----8-----|-----------------|
G :-----7-----7-----|---7-----7---7---|---7---7-----7---|---10----9h10----|
D :-0---------------|-8-----7-------7-|-5-------------5-|-10----10-----10-|
A :-----------------|-----------------|-----------------|8-----7----------|
E :-----------------|-----------------|-----------------|-----------------|



Chorus

(chords)
      Dm      Bb     Asus4    G5       F       C
Eb |---1---|-------|-------|---3---|---1---|---0---|
Bb |---3---|---3---|---3---|---3---|---1---|---1---|
Gb |---2---|---3---|---2---|---0---|---2---|---0---|
Db |---0---|---3---|---2---|---0---|---3---|---2---|
Ab |-------|---1---|---0---|---x---|---3---|---3---|
Eb |-------|-------|-------|---3---|---1---|-------|


Dm                 Bb     Asus4           G5
with this knife I'll cut out the part of me
       F             C
the part that cares for you
Dm                 Bb     Asus4            G5
with this knife I'll cut out the heart of me
        F             C
the heart that cares for you



Eb |-0-0-0-0-0-0-0-0--0-0-0--0-0-0-0--1-1-1--1-1-1-1-1--0-0-0--0-0-0-0--|
Bb |-1-1-1-1-1-1-1-1--1-1-1--1-1-1-1--3-3-3--3-3-3-3-3--1-1-1--1-1-1-1--|
Gb |-2-2-2-2-2-2-2-2--0-0-0--2-2-2-2--3-3-3--2-2-2-2-2--2-2-2--0-0-0-0--|
Db |-2-2-2-2-2-2-2-2--2-2-2--3-3-3-3--------------------3-3-3--2-2-2-2--|
Ab |------------------3-3-3--3-3-3-3--------------------3-3-3--3-3-3-3--|



Dm                  Bb     Asus4   G5 
I cant believe the way you took me down
F       C       Dm
I never saw the pain
            Bb      Asus4     G5
coming in a million different miles
     F      C      Dm
like poison for my veins


chorus

Dm                Bb      Asus4           G5
with this knife i'll cut out the part of me
       F              C
the part that cares for you
Dm                 Bb     Asus4            G5
with this knife I'll cut out the heart of me
       F              C
the heart that cares for you

(repeat chorus)

Eb |-0-0-0-0-0-0-0-0--0-0-0--0-0-0-0--1-1-1--1-1-1-1-1--0-0-0--0-0-0-0--|
Bb |-1-1-1-1-1-1-1-1--1-1-1--1-1-1-1--3-3-3--3-3-3-3-3--1-1-1--1-1-1-1--|
Gb |-2-2-2-2-2-2-2-2--0-0-0--2-2-2-2--3-3-3--2-2-2-2-2--2-2-2--0-0-0-0--|
Db |-2-2-2-2-2-2-2-2--2-2-2--3-3-3-3--------------------3-3-3--2-2-2-2--|
Ab |------------------3-3-3--3-3-3-3--------------------3-3-3--3-3-3-3--|
Eb |--------------------------------------------------------------------|