Stand In lyrics

I'm only a stand in
After all's said and done
I fought for your love
I thought I have won.
But I'm only a stand in
for somebody else
What a dreamer I've been
I'm just standing in.
I wondered if you know dear
That when you're in my arms.
Sometimes the name you whisper isn't mine
I've tried not to believe it
But in my heart I know
I've only been a stand in all the time.
--- Instrumental ---
I'm only a stand in
after all's said and done
I fought for your love
I thought I have won.
But I'm only a stand in
for somebody else
I thought I could win
What a dreamer I've been
I'm just standing in...

Submitted by Guest

What do you think is the meaning of Stand In by Jim Reeves?