If you’re going to throw around definitions of Borderline and other personality disorders, please make sure you start with a caveat as to whether this is a professional opinion.
Borderline types deal with emotional dysregulation, which means they can’t contain their feelings, and associated with that, they think everything is about them, or should be. A friend of my is Borderline, and she seriously thinks that every sad/bad thing that happens to anyone is her personal misery, and they should be looking after her. I really love her, and boy does she struggle, but it’s hard to listen to some times.
Someone who “feels too much”, and is too empathic is more likely to run from such a situation, rather than add to it and ramp up the emotions.
a couple of pps have already pointed out that child abuse/having seriously disordered parents can lead to this hypervigilance, which doesn’t have to be just about staying out of the way, being able to tell when a storm (temper) is coming. It can be so nuanced that they catch on before the perpetrator even realises they’re spoiling for a fight. Being able to tell when someone is sad at work even when they’ve got their game face on, and in a suit in a board room.
My autistic son has incredible awareness about people and their characteristics, freaks me out because he’s so quiet you don’t think he’s absorbing anything, and then he names the bad and the good and you think “fuck, I had only just realised they were bad news” and he’s already got them sussed. He describes is like this:
“I know I’m suppose to like Jane because she says xy and z, but there’s something else that means I’m not sure she really thinks that, and I wonder if she’s going to say something different to someone else. I feel really worried about saying the right thing to her”.
Neither he (or I), go around telling anyone we feel like this, or that we find emotional situations leave us raw, but we’ve both had plenty of people say things such as “omg, how did you KNOW that, I was just about to say that”, or similar. It’s not clever, it’s not amusing, it’s fucking annoying, and exhausting.
But feel free to brush everyone with the same fb/social media/narcissist crap.