I'm still a beginner guitarist and this is my first time doing a tab, so if you find any errors please put them
in the comments. However, based on her live performance I think this is pretty accurate. It sure sounds 
accurate to my ears but I could be wrong. Any help is much appreciated.
https://www.youtube.com/watch?v=Bn1ZIyjUZ7s (Live performance)
   G              C               G
My love is like a box it's big and open  
    G          C               D/Dsus4
And inside you know you want to climb   
           C          D 
but if you find someone like you
Em           C
to share the space  
  C       D       G
my box can be sublime
   G              C               G
but a love is like a box it does fold easily
    G          C               D/Dsus4                            
and suddenly it's not quite what it seems 
           C          D 
and if our love should ever fold   
Em           C                                
they'll shut you up in that box
  C       D       G                                          
and I'll tape it up so you can never go 
   G              C               G
and it won't be with weak cello tape 
    G          C               D/Dsus4                                   
and it won't be with weak masking tape 
           C          D  
it'll be with branding duct tape yeah   
Em           C                                
im gonna tape you in
        C                                               
and i'll reinforce the corners so you
D/Dsus4                                        
can't kick it in
C
never leave me-if
D                                                       
you like sunshine and
C                                                       
never leave me if
D                                                       
you- ike fresh air and
C                                                       
never leave me if
D                                                       
you like living and     
C                                               
never leave me if you
D                                                       
like your heart beating 
Dsus4                                           
cause my
G              C              G
love is like a box it's decomposable    
      G           C           D/Dsus4                                                                        
and it can disappear without a trace    
          C        D
and if you keep on trying
    Em            C                                            
to esacpe from that box 
                      D                 
I'll throw you in the Thames
    Em                C
and watch you slowly drown
C
and when they finally fish you out they won't be able to identify       
who you are.... so they'll bury you, in a cardboard coffin
D
atleast you'll feel at home
   G              C                G
my love is like a box it's big and open 
C      D    G                         
come...on...iiin