You crossed my mind only once, and haven't left since.

I can't pretend these tears
Aren't overflowing steadily
I can't prevent this hurt
From almost overtaking me
But I will stand and say goodbye
For you will never be mine
Until you know the way it feels to fly

Spread your wings and prepare to fly
For you have become a butterfly
Fly abandonedly into the sun
If you should return to me
I will know you're mine
We truly were meant to be
So spread your wings and fly
Butterfly, my butterfly