Evil/Free Will

I don't want you to think
That you gotta keep me happy.
I don't want you to think
That you gotta make me smile.
I don't want you to think
That you gotta keep me happy.
You've got better things to do with your time.

Like for one thing, I think
You oughta keep being pretty.
For one thing, I think
You oughta keep looking fine.
For one thing, I think
You oughta keep being pretty.
It really takes a load off my mind.

My happiness is a side effect:
You are serious medicine.
My happiness is a side effect:
You are a powerful drug.
My happiness is a side effect:
Like evil is to free will.
My happiness is a side effect of you.