Verse 1:

 G5                  D5
   I know I've been holding it in
 A5          C5
   The way I feel about u
 G5                     D5
   Something I've been dying to say
 A5                 C5
   But I don't know how you'll take it
   A5               C5
   Oh Please don't go
   E5          D5
   You should know

  
PreChorus:

   G5     D5     A5
   These three words

   I've been holding back
   A5     C5  D5
   Trying to fight

   Imma let em out
   G5     D5     A5
   These three words

   gotta let you know
   A5   C5 D5
   Here I go go go

Chorus:
               G5     D5 A5
   Go screw yourse-e-e-e-elf
                  C5
   I've had enough yeah
              D5
   now we're done
              G5      D5 A5
   Go screw yourse-e-e-e-elf
              C5
   Not gonna lie yeah
           D5
   It was fun

   But go screw yourself

Verse 2:

 G5                    D5
   Feels good just to get it all out
 A5            C5
   it's so not overrated
 G5             D5
   U can't keep puttin me down
 A5               C5
   And getting away with it
   A5       C5
   Oh now I know
 E5           D5
   The way to say

PreChorus:

   G5     D5     A5
   These three words

   I've been holding back
   A5     C5  D5
   Trying to fight

   Imma let em out
   G5     D5     A5
   These three words

   gotta let you know
   A5   C5 D5
   Here I go go go

Chorus:
               G5     D5 A5
   Go screw yourse-e-e-e-elf
                  C5
   I've had enough yeah
              D5
   now we're done
              G5      D5 A5
   Go screw yourse-e-e-e-elf
              C5
   Not gonna lie yeah
           D5
   It was fun

   But go screw yourself

Bridge:

 A5                  C5
   Guess I thought I knew you
            E5                D5
   Now I know I couldn't have been more wrong
 A5                    C5
   I had a feeling it would go this way
         E5            D5                   G5
   And I waited waited way too long to say
         D5            A5
   to say these three words
         C5            G5
   To say these three words
         D5            A5
   To say these three words
       C5   C5       C5   C5
   To say, to say, say-say

Chorus:
               G5     D5 A5
   Go screw yourse-e-e-e-elf
                  C5
   I've had enough yeah
              D5
   now we're done
              G5      D5 A5
   Go screw yourse-e-e-e-elf
              C5
   Not gonna lie yeah
           D5
   It was fun
            G5      D5 A5
   Go screw yourse-e-e-e-elf
                  C5
   I've had enough yeah
              D5
   now we're done
              G5      D5 A5
   Go screw yourse-e-e-e-elf
              C5
   Not gonna lie yeah
           D5
   It was fun

   But go screw yourself 


You can end with G :)
Hope you like it, xx