@MapleBob ... being accused of being a 'psycho stalker' is a pretty big affront to someone that is not ... so, if you're not a 'psycho stalker' ... the chances are that you'll want to refute it (defend yourself). In doing so you give an emotional response to the accuser and ... splish, splash, splosh ... emotional energy to the accuser. If you don't/didn't react/respond (which I suspect) ... what was the response? ... .he tells people he doesn't want to be in your presence at parties again (because you see him for what he is ... ).
I'm guessing that this was intended for me. He didn't accuse me to my face, but in e-mails to mutual friends. As far as I know, the mutual friend did not respond to the e-mail at all. I have not responded, of course. I have ignored him completely, and all of his tantrums. I think he legitimately believes that I'm stalking him -- paranoia is another one of his typical behaviors -- and he tends to cut off people who don't agree with his paranoid thoughts. Is this delusional projection? Maybe, but I can't tell for sure. According to mutual friends, he may have even reported me to county authorities. If he hasn't, he has come close.
He has upped the ante a bit by posting ostentatious messages about

HOW MUCH FUN!

he is having with his new "group" of "friends" on social media where all of us can see it. Which means, he doesn't even hang out with the same people every week, eats dinner with a group of strangers, and is trying to convince us all that he's moved on and is having a great time. A lot of the people he claims as his new "friends" are people who know me and know what happened -- but he is blissfully unaware of this. Even last night he was posting online about how

AWESOME!

it was to see them all. Ha. I can't quite figure out what the endgame is with doing all of that, but it seems that he simultaneously wants to view me as a stalker and wants to be chased.