G = 3x5433
C6/G = 3x5555
Here is a tab of it.
E|-3-3-5-3---3-5-3-|
B|-3-3-5-3---3-5-3-|
G|-4-4-5-4---4-5-4-|
D|-5-5-5-5---5-5-5-|
A|-x-x-x-x---x-x-x-|
E|-3-3-3-3---3-3-3-|
   T T T T   T T T

Song starts here
[Intro]
E|-------------------------------------------------------------------|
B|-------------------------------------------------------------------|
G|----0----------------0---------------0---------------0-------------|
D|-----------3---2-0---------3---2-0---------3---2-0---------3---2-0-|
A|-------------------------------------------------------------------|
E|-3-------3---3-----3---3-3---3-----3---3-3---3-----3---3-3---3-----|

C G C6/G G
D7 C G C6/G G

[Verse 1]
G
You say you love me
C                         G  C6/G G
Say you're gonna treat me right
C
You say you miss me
C                        G  C6/G G
Say you're gonna hold me tight

[Pre-Chorus]
D
You know I love you
C
You know I do
D                     C
Come on, baby, what's wrong with you?

[Chorus]
  G   F  D
Today-ay-ay
  G   F  D
Today-ay-ay

[Verse 2]
G
You say you love me
C                         G  C6/G G
Say you're gonna treat me right
C
You say you miss me
C                        G  C6/G G
Say you're gonna hold me tight

[Pre-Chorus]
D
You know I love you
C
You know I do
D                     C
Come on, baby, what's wrong with you?

[Chorus]
  G   F  D
Today-ay-ay
  G   F  D
Today-ay-ay

[Guitar and piano solo]
G C6/G G
C Cadd4 C Cadd4 C Cadd4
G C6/G G
D Dadd4 D Dadd4
C Cadd4 C Cadd4
G C6/G G

[Verse 3]
G
You know I love you
C                        G  C6/G G
How come you change your mind?
C
You know I love you
C                     G  C6/G G
How come your love is blind?

[Pre-Chorus]
D
You know I love you
C
You know I do
D                    C
Just like you wanted me to do

[Chorus]
  G   F  D
Today-ay-ay
  G   F  D
Today-ay-ay
  G   F  D     G
Today-ay-ay