I made you laugh,but that is not what you will remember. I cracked your shell, I've shown you the world-- what it's like to go out there and feel, but you would forget it was me. You'd look at her and drown in her smile and in your happiness forget who taught you to fly. You will forget the world that was before her. The world where I continue to exist, where we met, where you became what you are because of me.
That is what rankles:
the knowledge that she would be perfect for you, and I, and I would just be that flawed someone
who changed bits of you unnoticed.