Very easy, very beautiful song. The whole song is these four chords, fingerpicked:

C:     x32010
D9:    x54030
Em9/B: x24030
Em:    022000

C                      D9  
Lovers accustomed to tragedy
Em9/B                     Em              C
See every kiss in the window across the street
               D9              Em9/B          Em
Breezes and blessings passing by, ah ooh-oh.

Enjoy.