I agree that Susan should not try to protect Louisa from her own bad behaviour. While this may appear to be the "high road", it's giving people a distorted idea of who Louisa is. If Louisa does not believe her behaviour is atrocious, there's no harm in telling people exactly what she did, right? Not necessarily, "Louisa is a female dog who kicked me out," but "Louisa decided that I didn't fit in with the look she was going for, and I agreed to step down." Then, hopefully, Louisa's friends and relatives will help Louisa understand why this was not appropriate. Otherwise, she will continue to believe that she acted correctly.