Unbidden

I know its wrong
I know its bad
But I still think of you when I'm sad
When you message me a smile appears
Unbidden
And it just won't go
My heart flutters at the mention of your name
And butterflys arrive in my stomach
They just won't fade
Thoughts of you in my head remain
Unbidden
I know its wrong
I know its bad
But I think I still love you
And it makes me sad