Ghost or Me?

I'm an atheist,
So it is kind of hard for me to believe in ghosts,
But I think...
I think I can say for certain something
Or someone is haunting me.
To be arrogant enough to flat out say no
That I am not being haunted would be...
Well as arrogant as it was for me to say no,
There is no God. But I didn't struggle with that.

It's a girl,
And judging by her judging of me,
She is around a similar age as me.

I haven't spoken to her yet,
No no. She knows I know.
She hasn't spoken to me either.
We have a nice mutual relationship.
She screams at me through chills,
And I show her around my world.

I'm not much of a chuffer,
And I feel her giggling at this.
She finds me cute, I can tell.
I can't tell however
Why she chose me to follow.

I fear sometimes that she is going to kill me.
I named her Cheryl
In the hopes that in labeling her,
She wouldn't kill me,
And would maybe set me free.

But again, It's against my believe
To think it's true that a ghost is following me,
So it might just be my conscience...