There’s plenty of help out there for abusive romantic relationships, but what about friendships? Here are some links:
Friends with a Narcissist
What makes a friendship abusive?
Coping with a verbally abusive friend
Joyful Alive Woman’s “My 32-year friendship with H – A Woman with Early Narcissistic Injury and Many Narcissistic Traits”
Scroll down to ‘A “Christian” Abuser in Action’
I have had two abusive friendships. The first was Shawn; story here. The second was Richard and Tracy; story here (summary, which leads to the book-length version if you are so inclined).
Shawn and I eventually came to peace, but Richard and Tracy have been stalking me for the past year; you can follow the stalking story starting here, and especially here.