My best friend of more than 20 years betrayed me in an almost reality-TV scenario of sex, lies, and gossip. She was battling mental illness throughout. She has since begged me for forgiveness, and we have spent some time together. But five years later, I am haunted by her. I have weekly nightmares about her. We live in the same city as strangers. How can I stop thinking of her? Will I ever? Should I delete her from all social media? Stop communicating with her mother? Should I spend money on a therapist to try to get her out of my head? I feel as if she’ll be stuck there forever, no matter what I do.
E.W. / Boston