Here is a song that particularly reminds me of Nikki and the various heartbreaks she's had over the first three series. It's a song by Jann Arden, titled, Hanging By A Thread.

"Hanging By A Thread"
Jann Arden

When I cry, I close my eyes
And every tear falls down inside
And I pray with all my might
That I will find my heart in someone's arms
When I cry, cry

When I cry, when I am sad
I think of every awful thing I ever did
When I cry, there is no love
No, there is nothing that can comfort me enough
When I cry
Cry, cry

(chorus)

The salt inside my body ruins
Everyone I come close to
My hands are barely holding up my head
Oh, I'm so tired of looking at my feet
And all the secrets that I keep
My heart is barely hangin' by a thread
Hangin' by a thread

Oh, look at me
At all I've done
I've lost so many things that I so dearly love
I lost my soul
I lost my pride
Oh, I lost any hope of having a good life
So I cry
Cry, cry

(chorus)

I miss you all
I wish I was
With you now
I wish I was