<human>: I live in a 2 story apartment building with an upstairs unit and a downstairs unit (mine). My neighbor upstairs is sort of reclusive, but friendly and harmless enough.

The problem is that slowly, over the past couple years, he has tracked me down every facet of online life I have, Facebook, portfolio website, yelp reviews, discogs account, etc, EVERY SITE.

As far as I can tell, he has no online presence, he simply creates an account under the same fake alias, friends me, then 'tracks' me. He never makes comments or contributes, just watches, he will casually bring up stuff from my life in the rare instances that we talk.

I try an avoid drama, so I have always 'accepted' these strange approaches to friendship, but as time goes on it just bugs me that he knows so much about me, yet I know very little about him. How can I 'unfriend', 'unlink', 'un-everything' from him without causing some sort of rift?

Can you give me the gist of the text in a nutshell?
<bot>: Nosy neighbor creates aliases online to follow the happenings of me, at first I accepted this, now I think its creepy. How do I web-unhook from him without drama?