Yes a valuable lesson of how a bpd/npd conducts themselves online.. scary thing is, some folks hide it much better than others. I have had the misfortune of meeting a few narcs.. it gets easier to spot their patterns and nonsense once the affliction they have, is understood. They certainly have their very own special set of rules.
My ex is a narcissist. The biggest issue is that you have to be "on" all the time. You can't let your guard down at all, and they force you into corners. My ex once came into my house - back in the early days when he was using access - and asked if he could use the facilities - on his way into the bathroom he picked up my house phone and proceeded to go through every call while in the bathroom. He coughed to cover the beeping noise of the phone. When he came out, he had the phone in his hand - I asked what he was doing with it - he denied having it. It was clearly in his freakin' hand, but he denied it was there. Makes it very difficult to come to any sort of common ground, doesn't it?
I asked him to wait at the front door in future, he told me that wasn't "acceptable to him".
So, I made him wait in the car.
Just one of many incidents that I endured. I ended up having to install security lights outside my house just to keep him from lurking on my front porch - he literally believed he had every right to be there at 11pm on a Monday night.