P made the Lurker account just to fuck with you? That would mean he pretended to be your ex in order to screw with you. That is some shit right there lol. I wouldn't classify that as stalking though. Sounds like a really mean prank to me. If he was trying to get info and find where you live irl and kept harassing you for info and shit, then that is stalking. It isn't like P was showing up at your work or school with a strap-on for you to buttfuck him with or anything.
Umm, who the hell mentioned P? Ice cream headache was one of my ex's sock puppet accounts, and he (my ex) definitely made the Lurker account to monitor me without me knowing it was him after I broke up with him.