Nick most certainly reads every word about him in these threads. He probably doesn't like to be psycho analyzed online, but there are some distinct telltale patterns in his behavior that he can't just hide behind his mask.
As I commented awhile ago I think Nick falls on the vulnerable weakling side of NPD. He does have an inflated sense of self importance, and low empathy typical of a pathological narcissist, but he also has shown typical traits of a Borderline (BPD). Extreme impulsivity and reckless behavior (drugs, booze, swinging) According to Aaron frequent fits of angry rage, and also self harm (hitting himself in the head) Paranoia and disassociation from reality (muh government is after me! conspiracy!!) He married Kayla young, so he doesn't have a pervasive pattern of unstable relationships, but I think one he's definitely hiding is his extreme fear of abandonment. It would help explain why he is still with her after this dysfunctional shit show of public embarrassment. Also she's definitely a toxic codependent herself. It's called the co dependent narcissist trap. They're both probably trauma bonded to each other. Toxic attracts toxic, and their kids are going to have problems because of their selfish decisions.
Rolling for a Lyle and Erik Menendez ending to this eventually.