The song you are looking for is Once I Was by Tim Buckley. It goes like this:

Once I was

(C)Once I was a (Fmaj7)soldier
(C)And I fought on foreign (Fmaj7)sands for you
(C)Once I was a (Fmaj7)hunter
(C)And I brought home fresh (Fmaj7)food for you
(C)Once I was a (Fmaj7)lover
(C)And I searched behind your (Fmaj7)eyes for you
(C)But soon there'll be (Fmaj7)another
(C)To tell you I was (Fmaj7)just a liar

Refrain:
(Am)But sometimes I (F)wonder just for a(G)while
(Am)Will you ever remember (G)me (Am)

And though you have forgotten
All of our cherished dreams
I find myself searching
Through the ashes of our ruin
For the days when we smiled
And the hours that ran wild
With the magic of our eyes
And the silence of our words

Refrain