I was reading redheart fics when I stumbled upon this one:
http://www.fimfiction.net/story/7150/we-are-our-habits

I left me emotionally drained the next day.  I loved it. Anyways this is for the author.

Lyrics:
[Intro]
This is a song through the eyes of our favorite nurse.
You've been through a lot Redheart.
Your story touched my heart.
And it must be told.

[Verse 1]
I refuse!  You can't die!
You're the best thing in my life.
That monitor is lying
Come on wake up
You promised that we'd go flying
Just say you love me
And hold on to me
Come on please just count to three
I feel a part of me just died
Like a light absorbed by night
It used to shine oh so bright
Back when everything was fine
For the next 5 years after
I never ever shed a tear
No emotion
Stay in motion
Like I was on some sort of potion
Then some blue pony appeared
when he died I fell to tears
Then I stood, thought, and decided
"I won't let this stallion die" I
Took the defib from the mare
Placed it on him then yelled "Clear!"
He awoke
I tried so many times he smelt like smoke
I was surprised by my outburst
I took this moment to disperse
I ran away
Felt so afraid
Why do I suddenly feel this way
I couldn't think of a reason why
So I just sat there and cried

Art by Edlynette: http://edlynette.deviantart.com/
Instrumental by Dr. Dre
Vocals by Me