You must have forgotten

All I need from you is this
Just one question, I promise it will be the last
Tell me have you forgotten
Forgotten your entire past?

Don't tell me you've forgotten
Forgotten everything
Forgotten what we used to be
Forgotten me entirely

Have you ever looked through old photographs
Of everything we've been through
All the letters I ever wrote
When I was the only one who was there for you

You must have forgotten
Maybe I just can't see
That all those times you lied
When you said you'd always be there for me

All the laughs and smiles
All the tears and pain
I know you haven't forgotten
Me calling out your name

I just can't seem to grasp the fact
That maybe I really can't see
That you really have gone away
That you've forgotten about me