This song is so beautiful, sorry if I may have got the words wrong!
Just sort of hold the chord shapes and play the arpeggios (:
Also, I'm not sure if it is techically called B/G but for that chord play this:
If I gave you my heart
To wear upon your arm
Would you lend me all your scars to bear?
I swear I'm here
And never take it off
Never take it off
Cause we're all tied up in knots