Rules in a Knife Fight

I don't even know you
You've become a stranger
The salt in my eyes
And the bottom of my drink

Left me for another
Found a new lover
You know I'll make a scene
But it ends the same

You let me know
That you had let me go
When you took my money
Down to Mexico

When you find a new man
Be sure to tell him
You're gonna up and run
With his love someday