Chords used:

Dm C B A

e|-5----3----1----0
B|-6----5----3----2
G|-7----5----3----2
D|-7----5----3----2
A|-5----3----1----0
E|-5----3----1----0

Intro:
Dm C

Dm C
Please, please forgive me,
Dm C B Dm
But I won't be home again.
C
Maybe someday you'll have woke up,
Dm C
And, barely conscious, you'll say to no one:
B A
"Isn't something missing?"

(Dm C)
You won't cry for my absence, I know -
You forgot me long ago.
Am I that unimportant...?
Am I so insignificant...?

B A
Isn't something missing?
B A
Isn't someone missing me?

(Dm C B A)
Even though I'd be sacrificed,
You won't try for me, not now.
Though I'd die to know you love me,
I'm all alone.

B A
Isn't someone missing me?

Dm C

Dm C
Please, please forgive me,
Dm C B Dm
But I won't be home again.
C
I know what you do to yourself,
Dm C
Shudder deep and cry out:
B A
"Isn't something missing?
B A
Isn't someone missing me?"

(Dm C)
You won't cry for my absence, I know -
You forgot me long ago.
Am I that unimportant...?
Am I so insignificant...?

B A
Isn't something missing?
B A
Isn't someone missing me?

(Dm C B A)
And if I bleed, I'll bleed,
Knowing you don't care.
And if I sleep just to dream of you
And wake without you there,
B A
Isn't something missing?
B A
Isn't something...

(Dm C)
You won't cry for my absence, I know -
You forgot me long ago.
Am I that unimportant...?
Am I so insignificant...?

B A
Isn't something missing?
B A
Isn't someone missing me?

hope it helps