I don't bear any grudges against anyone. I just find the behaviour of you two utterly pointless and noxious. The root cause of it being PH only means his deceit is still reverberating on the forum FIVE years later. Enough is enough it has to end. It does not achieve anything.
What was the spirit of the forum like before PH joined and left? They say psychopaths leave a trail of devastation and chaos and he has done just that. Having retrospectively read the posts by "Mason Doyle" I must admit he came across as very affable nice guy to everyone. Yet in private communications it was very different story, threatening and abusing at least half a dozen members here. He sounds like the classic psychopath/narcissist we all hear about.
Just for the record I have had Caroline on ignore for the past 20 days (partly for the sake of my sanity) . Any replies I have given her since then is a result of me browsing the forum without logging in and unfortunately seeing what ever she decided to dish up on me for that moment. If she still insists on me lying to NGB for what ever reason then NGB can always summon me to explain myself if he feels lied to. 
So it has to end, does it, David? Then bloody well end it!! ALL of this is down to you. You'd lost your sanity -at the very least, all sense of perspective, well before "the past 20 days", which have been about you trying to twist your way out of a situation of your own making and at each turn revealing yourself as the sneaky, lying rat you are, and just for the record, there's probably no point in NGB "summoning" you to explain yourself because chances are it would be yet another tissue of lies, probably in attempt to put the blame on Caroline and me.
Exactly WHAT is with your obsession with PH? You drag up his name on a daily basis -perhaps it's the only stick you have to poke Caroline with?- but now it appears you weren't even here when it happened!! I'd actually forgotten that he turned up as "Mason Doyle". As for the "trail of devastation and chaos" you accuse him of leaving -and interesting that only NOW do you recognize that "he came across as a very affable and nice guy to everyone"- you're certainly doing your level best to continue it -because, basically, you've involved yourself in a situation which has SOD ALL to do with you in order to take spiteful digs at Caroline, whose knowledge of this case way outstrips your own and I'll hazard a guess that knowing it gnaws away at you on a daily basis, and yet you have the temerity to claim you don't bear grudges! Mmm? All of which suggests that, in your mind -no one else's- PH has become HUGE, the obsession is yours. It's beginning, as you admit to needing to save your sanity, to sound as if it would be a good idea for you to take a break to sort yourself out. Whatever YOU may feel has been "dished out" to you, is no more than your just desserts.