My Zombie Ex-Girlfriend

Most often you're told that when the pressure is on everything slows down.
I can tell you from current circumstances this is not true,
As we speak I'm running around like a scared puppy who's far from home.
There's a fire in my chest that is growing with each furious step I take.
My mind can't focus on anything for more than a second or two,
Which is unfortunate because I could really use an escape plan.

Most often you're told that you can do anything you set your mind too.
This would be valid had the laws of physics not been so...physical.
My heart was jumping around inside me swelling and contracting,
Forcing itself supply my exhausted muscles with inadequate blood.
I fell hard to the ground, my body gave up and I couldn't run anymore.
Exasperated I flung myself upright and reached for my gun

Most often you're told that before you die you think about a loved one.
I wouldn't know, I'm still alive, but my loved one is dead.
They died a while ago to causes unknown, but their body lays before me.
Strong, rigid, and oh so very dead with a bullet in their brain.
The relief I felt was whelming, but the grief is entirely unbearable.
I won't shed a tear though, right now I'm too confused and suspended

Most often you're told that right choices are the hardest ones to make.
This could be left to debate, as of right now I'm contemplating what's right.
Is killing your girlfriend who's only thought is to eat my heart out right?
Or would giving myself up for peace of mind because I love her too much?
I could dabble in this thought for a lifetime, and I have no doubt that I will.
However long my life will be, this will undoubtedly haunt me.