I have a sibling (the one who famously said "men can't be abused!") who thinks that therapists/psychologists belong just to ex-soldiers or victims of trafficking. And to be clear, soldiers who have witnessed or experienced traumatic events, and people who have been trafficked definitely should have all the psychological support in the world.
But it's not a contest. I started going to therapy almost 3 years ago now, and I wish I had started going 3 years before that. I was diagnosed with anxiety, depression, and CPTSD (ironically, the CPTSD stems from the sibling's treatment of me during formative years, LOL). I've found amazing help from treatments such as rapid eye movement therapy.
Having broken out of the family stigma that mental health diagnoses and treatment is just for people at the far end of the trauma spectrum, I'm so thankful for the help I'm able to receive from my PTSD-specific therapy. It has allowed me to keep my job, relationships, and life.
I wish my sibling would do the same. I recognize that their treatment of me stems from so many mental health issues that they won't deal with because they refuse to admit that they could need help. Because they've never seen someone die in front of them or never experienced SA, they don't think they could have any diagnosis or receive any help from therapy. But I know if they did, not just their life would get better, but the lives of all of their friends and family who may otherwise have to cut them out of their lives eventually due to the behavior that's left unchecked.
Not saying that un treated mental health diagnoses are any excuse for abuse, but I am saying I have empathy for people who fall into that camp. Hurt people hurt people.
Even though B already seems so sweet and together, I bet that targeted PTSD therapies and medications will drastically improve not just her life, but all of her friend's and family's as it's never easy to watch someone you love suffer.