Foreigner - That Was Yesterday

I thought I knew you well, but all this time I could never tell
I let you get away, haunts me every night and every day
You were the only one, the only friend I counted on
How could I watch you walk away, I'd give anything to have you here today
But now I stand alone with my pride, and dream that you're still by my side
But that was yesterday, I had the world in my hands
But it's not the end of my world, just a slight change of plans
That was yesterday, but today life goes on
No more hiding in yesterday, 'cause yesterday's gone
Love, my love I gave it all, thought I saw the light, when I heard you call