Back gnawing

I ain't never loved : but three womens in my life
My mother and my sister : and my partner's wife

My mama told me : when I was about twelve years old
Man you nothing but a backbiter : may God bless your soul

I'm going to tell all you women something : baby you might not like
I want to know : if I can bite your man in the back

You might risk me brother : but I will never risk you
If you allow me a chance : I will gnaw your backbone half in two