Hi, this is one the most beautiful songs in the world!
I think this is how It goes:

C(332010)
F(033210)
Am(002210)

F (133211@1)            C (x32010@1)             F (133211@1) CFC  F (133211@1)                C (x32010@1)       FC
I like you when you're sad ain't weird to discover that 
F (133211@1)             C (x32010@1)              FCFC    AmAmAm
I like you when you're sad

This goes on and on and on....

Enjoy!