You Should Have Killed Me When You Had The Chance

The writings on the wall, you've read that I'll be gone, but if you call my name
Just know that I'll come running, for one more night to spare with you
This is where I'm meant to be, please don't leave me

I walked into your house this morning
I brought the gun from our end table
Your blood was strewn across the walls
They'll find you on your bathroom floor when I'm done

But should I write it all off?
You should have killed me when you had the chance