I'm not entirely sure if I've got the chords right, but I think it should be something 
like this.

This is my first tab, so please rate and comment! :)

Standard tuning.
Verse: G - Em - G - Em
Chorus: G - D - C / Am - D / G - D - C / Em

The intro would go like this:
e|------------------------------------------------------------------|
B|--------------------------0-3-------------------------------------|
G|----0-----0---0--2-0-2-0-2---------0-----0---0--2-0-2-0-2-0-2*-0--|
D|2-2---2-4---0----0-------------2-2---2-4---0----0-----------------|
A|2----------------0-------------2----------------0-----------------|
E|0------------------------------0----------------------------------|
   *is where the verse starts, "Oh this-"

Verse 1:
        G                      Em
Oh this feels like the Kennedy Curse
     G                    Em
And everything inside is dead
           G                      Em
I'm on the fence about what feels worse
        G                     Em
The one leaving or the one in bed


Verse 2:
     G                            Em
In a dream she's talking dirty to me
          G                     Em
Just in a language that I can't speak
         G
Then she kisses my scars
       Em
As she cuts out my heart
    G                      Em
And places it right on her sleeve


Verse 3:
           G                          Em
I'm having visions of the way it will end
      G                    Em
I can see it all now in my head
         G
You will cast the first stone
    Em
My sail will be torn
             G                    Em
I'll lose my vessel to a dark sea bed


Chorus:

G                 D                C       (D)
Will someone just come and take my heart
G              D               C        (D)
Set it down in front of moving cars
Am                 D
 I feel nothing at all
   G                  D                C
So won't someone just come and take my heart
             Em
And tear it apart

(A/N: (D) is an optional chord to be played at the last beat)

Verse 4:

      G                       Em
Oh my thoughts they remain perverse
      G                         Em
And I know I am the first of my kin
      G
To be born with this curse
   Em
So persuade and coerce
            G                   Em
Because I'm willing to be born again


Chorus:

G                 D                C        (D)
Will someone just come and take my heart
G              D               C         (D)
Set it down in front of moving cars
Am                  D
  I feel nothing at all
   G                  D                C
So won't someone just come and take my heart
             Em
And tear it apart

("And tear it apart" repeats for a few times before the song ends, it's the same chord 
all the way, so you can improvise)

Outro (optional)
e|------------------------------------------------------------------|
B|--------------------------0-3-------------------------------------|
G|----0-----0---0--2-0-2-0-2---------0-----0---0--2-0-2-0-2-0-------|
D|2-2---2-4---0----0-------------2-2---2-4---0----0-----------4-2---|
A|2----------------0-------------2----------------0-----------------|
E|0------------------------------0----------------------------------|


You can choose to end with Em if you don't want to end with the outro.