I only have one more friend in my life and I have the urge to cut them out.
Why do you want to cut him out of your life?
Because he said mean things about me and he he never has my back.
You cannot be expected to stay friends with someone who does not return the favor. It is not normal to cut people out of your life completely.
Honestly, I don't feel like it's any of your business.
I'm only trying to help you out and give you some guidance on what to do. Like I said, you don't have to put up with people that treat you poorly. There are plenty of other people you could find to be friends with.