Intro : Main riff (start at 0:37) :

G-:-----------------------------------------I
D-:-----5-----------------------5-----------I
A-:---7-----5-7---4-7---5-7---7-------------I
E-:-0-----0-----0-----0-----0---------------I x8

Verse : Main riff

Chorus : Main riff 

"And my heart..." (01:48)

G-:---------------------------------I
D-:---------------------------------I
A-:---------3-----------------------I
E-:-5----35------5-3-5--35--3-------I

Verse and chorus always on the main riff

Bridge (03:00)

G-:------I------I------I------I
D-:------I------I------I------I
A-:------I-5----I------I-5----I
E-:-0----I------I-0----I------I

And then follow the guitar (03:14)

G-:---------------------------I
D-:---------------------------I
A-:---7/10--10/2/5---------5--I
E-:-0----------------0-0-5----I x4

then...

G-:----------------------------------------------------------------I
D-:---------------------------5------------------------------------I
A-:---7/10--10/2/5--------7-8---8----------------5-----------------I
E-:-0----------------------------------3-3-5----------7-7-6/0------I

During the solo, verse and chorus play the main riff...

End (04:42)

G-:----------------------------------------------I
D-:-----------------------------------------5----I
A-:---------3---------------------------7-8---8--I
E-:-5----35------5-3-5--35--3--------------------I

Enjoy !