There's not enough information to know exactly who Betty is. She could be anyone - a normal person, a famous figure in a small community, or just someone with an interesting tale to tell.
Since we have no clue about Betty's story, it could be a love story where she met someone special and how their relationship developed. It could also be a story of her struggle, perhaps she overcame an illness or faced difficulties in her career and she's sharing how she managed to get through those tough times.
Her best friend could be a main character. This friend might be really empathetic and be by Betty's side throughout the whole period, sharing stories and making her laugh.
She is also quite sassy. In the stories, she isn't afraid to speak her mind and take on challenges. For instance, when faced with a mean character, she'll stand up for herself. And her signature short dress and high - heeled shoes are part of her unique style that makes her easily recognizable in her stories.
It's likely about Betty Broderick's final outburst or act of fury. It might detail her story, including events that led to this final state, perhaps her relationships, and the things that made her reach this point of 'final fury'.
I don't know for sure, but she is probably the main character in the 'betty knox ghost story'. Since it's named after her, she must be the one who has some kind of experience with the ghost.
It could be about Betty's friends trying to cheer her up during this difficult time. Maybe they bring her favorite snacks and movies to make her feel better.