Everyone already said what was good on this but I'll go ahead and do it too. When I read stuff like this, then go and try to write, I wonder how in the hell do people get so much emotion with so little words. You did that well here, like everyone already said.

She knows I love her but ill make it clear
With whispery words written in her ear
To sing it to her, I won’t be there
But as she reads, my voice she’ll hear

I know DaGyrl already said this but it's the part I liked too. Good post.