I really don’t understand these borderline sociopaths

Ultimately a sociopath is a person who does not have a conscience. They have no ability to think outside the box when it comes to did I hurt his feelings or not. Any normal person would know that if you did something to somebody how they would feel about you for doing that to them. A sociopath is very self-centered and only cares about their own feelings and they assume that you always just forget and go on after they treated you like dirt because that's usually what they see. It's like this... How many times did somebody piss you off but you just shrugged it off and went on because you didn't want to make the situation worse? This happens all the time to a sociopath because people don't stand their ground so the sociopath just assumes people just forget bad things. after encountering a few sociopaths I have learned that I stand my ground with them and I can spot one a mile away. There's one thing that really sets a sociopath off more than anything and that is when you do public humiliation on them.

try explaining their tactics to normal people. it is never believed. fortunately for me, my boss experienced my coworker's tactics when she turned on him...

If you really want to understand one very well then I suggest reading this book... The sociopath next door. By author Dr. Martha Stout.

They are in dire need of a karmic whooping