I get the impression someone really did this to you, So. (Sorry about the lack of accent mark; can't figure out how to do it on my computer yet).
What can I say? It is beyond horrible. Beneath contempt. And so, so human.
And it has absolutely nothing to do with your innate worth. You were not ultimately created by whomever that was, and they are not qualified to determine your worth.
I also appreciate how nearly impossible it is to feel good about yourself when someone close has turned on you like that.
I can offer only compassion and (((((((

HUGS

)))))))