Verse 1:
                Eb
Found your love letters to her
             Cm
I'm tryna be cool, but it really xxxxxxx 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?
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