I lived with someone like op described.

He was my father in law and I had no other choice than to suck it up for years. When I left home, he transfered his insane behaviour to his own daughter, who eventually went no contact.
Nobody would believe me, he was so good at making me look like the problematic teenager (good fucking riddance, François).

Some people ARE motivated into making a living hell for you. I know it is hard to even imagine it, because most of the time we live with (to some extents) reasonable people.
But these borderline psychos exist and often target those who are hardly believed by others.

Anyway, my advice to OP is as most said on this thread: document everything, up to the hour of occurrence.

Edit: forgot that post was about neighbors downstairs and not a roommate

I never clicked on your posts because I thought they were literally meh random screenshots and nothing more.
Damn was I wrong. You are building the Lemmy museum of videogames.
Thank you!!!

Every drama on social network is a roller coaster