Hey guys, i have personally found that F G Am works just fine... Hope this helps!!
Standard Tuning: E A D G B E  

F          G           Am
 Love of my life, my soulmate 

F  G                   Am
   You're my best friend 

F       G          Am
 Part of me like breathing 

F            G      Am
 Now half of me is left 

             F       G     Am
I Don't know anything at all 
 
      F        G      Am
Who am I to say you love me 
 
            F        G    Am
I don't know anything at all 

          F        G      Am
And who am I to say you need me 

*From here on just repeat above*...

Color me blue I'm lost in you

 Don't know why I'm still waiting 

Many moons have come and gone 

Don't know why I'm still searching 

Don't know anything at all

 And who am I to say you love me

 I don't know anything at all 

And who am I to say you need me 

Hmmm hmmm mmm Uhhh oohhh 

aahhh Hooo aahhh ohh ohhh 

Now you're a song I love to sing 

Never thought it feels so free 

Now I know what's meant to be 

And that's okay with me 

But who am I to say you love me 

And who am I to say you need me 

And who am I to say you love me 

Mmmm hmmm 

I don't know anything at all 

And who am I to say you love me 

I don't know anything at all 

And who am I to say you need me 

I don't know anything at all 

I don't know anything at all 

I don't know anything at all 

I don't know anything at all