Why?

My sister came up to me one day,
nothing could have prepared me for what she was about to say.

"Where is my daddy? Why isn't he here?"
I heard the sadness in her voice and it brought a tear.

I tried to tell her without crying,
I wanted to tell her, without lying.

How could I tell her? How could I say?
that her father turned his back on us and walked away.

I know when she grows up she'll be strong,
but to grow up not knowing your father, that's just wrong.

Every time I think about it, it makes me want to shout,
but she has nothing to worry about, he's the one missing out.

That was the day when I could not lie,
when my sister asked me... why?