Instrumental:  | Gm | Gm | Gm | Gm | 
               | Eb | Eb | Eb | Eb | 
               | Gm | Gm | Gm | Gm | 
               | Eb | Eb | Eb | Eb | 
               | Cm | Cm | Cm | Cm | 
               | Gm | Gm | F  | F  | 
               | Cm | Cm | Cm | Cm | 
               | Gm | Gm | F  | F  | 
               | Cm | Cm | Eb | F  | Gm (let ring) 
 
from now on I write the chords resulting from the bass and guitar part together. 
Bass plays G A Bb C, guitar keeps arpeggiating on Gm 3553xx (or 3103xx?). 
 
Gm Am Bb           Cm             Gm Am Bb          Cm 
        Countless times I trusted you,    I let you back in 
        Gm         Am       Bb             Cm                 Gm Am Bb    Cm 
        Knowing... yearning... you know I should have run but I, I stayed 
 
Gm F Cm          Bb     Gm       F 
        Maybe I always knew 
     Cm             Bb             Gm  F  Cm  Bb      Gm F Cm Bb 
        My fragile dreams would be broken for you 
 
Gm Am Bb        Cm           Gm  Am           Bb          Cm 
        Today I introduced myself  to my own feelings 
     Gm           Am    Bb                 Cm                    Gm Am Bb                 Cm 
        In silent agony,  after all these years, they spoke to me...      after all these years 
 
Gm F Cm          Bb     Gm       F 
        Maybe I always knew 
     Cm             Bb             Gm  F  Cm  Bb      Gm F Eb F 
        My fragile dreams would be broken for you 
 
instrumental:  | Gm | Gm | Gm | Gm | 
               | Eb | Eb | Eb | Eb | 
               | Gm | Gm | Gm | Gm | 
               | Eb | Eb | Eb | Eb | 
               | Cm | Cm | Cm | Cm | 
               | Gm | Gm | F  | F  | 
               | Cm | Cm | Cm | Cm | 
               | Gm | Gm | F  | F  | 
               | Cm | Cm | Eb | F  | Gm (let ring) 
 
in the instrumental part, "Gm" means to alternate Gm and Gsus4, while 
                          "Eb"  ...  ..    ...    Eb ...  Eb6. 
 

 
playing the song with a capo on the 3rd fret makes it easier. 
 
the guitar riff is essentially made of two slighly different repeating figures: 
 

    
        Abrir tablatura
        
    
    
|----------------------| 
|-----------3-----3----| 
|.-5----3-5---3-----3-.| over Gm 
|.--------------------.| 
|----------------------| 
|----------------------| 
 
|----------------------| 
|-----------3-----3----| 
|.-5----3-5---------3-.| over Eb and Cm 
|.------------5-------.| 
|----------------------| 
|----------------------| 
 
the only relevant variation, played over the F chord: 
 
|----------------------| 
|----------------------| 
|--5-3-2----5-3-2------| 
|--------5--------5-3--| 
|----------------------| 
|----------------------|