I combined the melody notes and the chords notes to make chords that sound like the 
melody. I am in love with this song...

{{Capo on 2nd}}

[Intro]
G

[Verse 1]
        Gadd9
I wanna make you smile
    Amadd9
Whenever you're sad
Bm
Carry you around
            Cmaj7
When your arthritis is bad
Gadd9           (D
All I wanna do
        Cmaj7)   G     D7
Is grow old with you.


Verse 2
             Gadd9
I'll get you medicine
          Amadd9
When your tummy aches
Bm
  Build you a fire
           Cmaj7
When the furnace breaks
Gadd9                (D
It could be so nice
        Cmaj7)   G    (G7 Gmaj7)
Growing old with you.


Chorus
    (Cadd9 C)
I'll miss you
    (Cadd9 C)
I'll kiss you
(G          G/D)     (G/D       G)
Give you my coat when you are cold
(Cadd9 C)
 Need you
(Cadd9 C)
 Feed you
(D(hold)     /    D6)  (Cmaj7       / C)
Even let you hold the remote control. So


Verse 3
Gadd9
Let me do the dishes
       Amadd9
In our kitchen sink
Bm
  Put you to bed
                Cmaj7
When you've had too much to drink
Gadd9              (D
I could be the man
          Cmaj7)   G
Who grows old with you
 (D/G(hold)  C/F(hold))G(hold)
I wanna grow old with you