One, the ‘abused’ woman who is often the real problem and who is weak and unable to keep her own counsel and unable to confront her own relationship straightforwardly and honestly
I hope your experience worked out as well. The other is the ‘Girl Friend’ who, as you rightly point out, is often completely dysfunctional herself and with her own agenda that, at some level, hates what she sees as the “abusive, controlling, domineering men” she believes she has encountered her whole life and who she is going to protect her friend from in the future.
While not a formal alliance in terms of rules and regulations (There are so-called ‘Women’s Support Groups’ that are sometimes in this area) it is a widespread behavior trait on the part of many women.
I speak from experience as well, having successfully beaten off such an assault on my privacy, my home life and my relationship, but it was not easy even though the facts were perfectly clear. I just had to overcome what I see as a certain irrationality in many women and the rest was easy.
So sayeth the soothsayer!