Good grief but I am slow sometimes!

I have come to realize that the reason I always lose is because I simply am not capable of doing the things to others that they do to me.
Like the chick that I thought was my friend. First she invades my boundaries, then makes it look like I did something really terrible - completely made up by her, then goes around telling everyone in my social circle what I did and continued to add lie on top of lie, and all the while telling people I was attacking and threatening her and her friends. Sadly, it has now taken on a life of its own. People who used to be my friends think I'M the monster and she's been abused by me for over a year. I mean, somebody get me a shovel, would ya? It's getting deep...