Just before I left Los Angeles I “unfriended” the woman on Facebook who had treated me so poorly after getting engaged (and her behavior had been quite shaky before that, frankly). I wanted to remove all ability to keep up with her and her life.
That same sentiment is echoed here:
I haven’t spoken to my ex-best friend in almost five years. Late last year, after another night of chasing her around in my dreams, I unfriended her on facebook. Having that link there had become a reminder of the failure between us, and of how painful the situation had become. And although part of me will always wonder where she is and how she is going, removing that link has helped me move on. My dreams have become my own once more.