She's waiting for someone

She's playing piano..
she looks so sad..
I can see her tears on her face..
I tried to know who's that girl..
I can see the rain is falling..
while she's standing outside..
she's staring at the sky ..
and looks like she's waiting for someone..
If only I could know what is hurting her that much..
I have a feeling that I'm getting closer..
here she's the next day at the same time..
should I've ask her..?
I walked straight to her..
Suddenly.. I knew..
that girl..
Was me..