Verse 1:
                Eb
Found your love letters to her
             Cm
I'm tryna be cool, but it really xxxxing hurts
          Ab
I'll just do what I do
                     Eb
Silently torturin' myself
              Eb
Was her ocean deeper than mine?
               Cm
Did you sink into her, fall in love at first sight?
  Ab
I know we're good, but
                           Eb
I'm constantly comparing myself

Pre-Chorus:
      Eb
It's irrational and impossible
         Cm                         Ab
'Cause I know you had a life before me
        Ab
But I'm jealous, obsessive
      Eb                          Ab
And I wanna burn all your history, burn your history

Chorus:
Eb
   Can I have your heart in a plastic box? -Oh-oh-
Cm
   Never used, fully clean, untouched -Oh, oh, ooh-
Ab                                   Eb
   Like I'm the only one you've ever loved
      Eb
Can I have your heart in a plastic box? -Can I have your heart?-
Eb
   Can I have your heart in a plastic box? -Oh; Never used, untouched-
Cm
   Never used, fully clean, untouched -Oh-oh, ooh, yeah; Only one you loved,
loved-
Ab                                   Eb
   Like I'm the only one you've ever loved -Oh; Can I have your heart?-
      Eb
Can I have your heart in a plastic box? -Yeah-

Verse 2:
                 Eb
Are you sure you feel the same way? -Feel the same way?-
                  Cm
'Cause it took me months, it only took her a day -Uh-huh-
   Ab
To make you jump in
                         Eb
I read it in your handwritin'

Pre-Chorus:
      Eb
It's irrational and impossible
         Cm                         Ab
'Cause I know you had a life before me
        Ab
But I'm jealous of your exes
      Eb                         Ab
And I wanna burn all your history -Wanna burn all your history, ah-

Chorus:
Eb
   Can I have your heart in a plastic box? -Oh-oh-
Cm
   Never used, fully clean, untouched -Oh, oh, ooh-
Ab                                   Eb
   Like I'm the only one you've ever loved
      Eb
Can I have your heart in a plastic box?
Eb
   Can I have your heart in a plastic box?
Cm
   Never used, fully clean, untouched
Ab                                   Eb
   Like I'm the only one you've ever loved
      Eb
Can I have your heart in a plastic box?

Bridge:
Eb
Can I have your heart?
Cm
Never used, untouched -Mm, oh-
Ab
Only one you loved
Eb
Can I have your heart? -Hey, yeah, yeah, yeah, yeah-

Chorus:
 Eb
-Can I have your heart?- Can I have your heart in a plastic box? -Oh; Never used,
 untouched-
Cm
   Never used, fully clean, untouched -Oh, oh; Only one you loved-
Ab                                   Eb
   Like I'm the only one you've ever loved -Can I have your heart?; You've
ever loved-
      Eb
Can I have your heart in a plastic box? -Can I have your heart?; Yeah-
Eb
   Can I have your heart in a plastic box? -Can I? Can I?; Never used, untouched-
Cm
   Never used, fully clean, untouched -So untouched; Only one you loved-
Ab                                   Eb
   Like I'm the only one you've ever loved -You've ever loved; Can I have your—-
      Eb
Can I have your heart in a plastic box?