There is three people in our bed, you, me and your ex lover's ghost.

You sigh in your sleep, I wonder, are you thinking of the past?
Of your beautiful butterfly, who flitted away, who's love didn't last.
You sigh her name in your sleep,
It breaks my heart and I silently weep.
I find myself always being second best,
My love is true and forever and will past the test.
I love you, so I will play along with this charade, hoping you'll see,
Through her beautiful ghost and finally, really see me.