Lyrics of That's all there is to that

Did you ever watch the one you love
slowly drifting away form you?
and you know deep in your heart
there is nothing you can do
to make her stay, to turn the tide
to ease the pain that you feel inside
oh when her eyes say it's over and done

then you simply must face the fact
so you leave and think it's over
but you come hurrying back
hoping she'll change her mind
praying she'll take you back
but like the lady said
that's all there is to that