Not My Lover

This is about a friend of mine who I had feelings for while I was dating someone else.

As I sit here, I'm thinking of you.
I can't get you out of my mind.
I love another, with all my heart.
I do not want to think of you.
All the hurt you caused me.
All the tears I cried for you.
Why can't I get you out my mind?
I love another.
I shouldn't be thinking of you.
I do not love you, at least I do not think I do.
I can't love you, for I love another.
Remove yourself from my mind.
You are a friend. Not my lover.
If this is so, why can't I get you out of my Mind?