Okay my new houseshare roommate is genuinely "a bit off" and I should have seen the signs.

He greeted me normally first, maybe he was elated about going on a trip and seemed in high spirits.

Then he came back after a week and I probably introduced myself and he looked like he wanted to stab me lol.

Then he was in another good mood and wanted to get to know me, before regressing back only days later into hating me again.

He criticised everything I did upon moving in, even though I was trying my best, even tonight he does the same. I've been here a month and it is hell.

He wants full control of the kitchen, he is obsessed with the bathroom, he leaves strange words in marker on the bathroom cabinet with zero context to them at all. He absolutely insists that we all buy cleaning products according to his schedule.

He has the heating on in near perpetuity (along with my other roommate). I get that it is cold outside, but it's not THAT cold. And there also seems to be a problem with the radiator in my room that turns it into an absolute sauna which makes me very sweaty at night.

Unfortunately I only realized this now, I thought the guys just had the heating on too high at times. I'll be contacting the landlord to raise this concern tomorrow.

Now my roommate hates me, just making baseless assumptions and muttering things about me under his breath. All because of something outside of my control.

I think he might have some mental health disorder or might be on the spectrum and here is why I think so:

His roommate seems a bit troubled by him, often sleeping in the living room to get peace. The only reason he leaves the other guy alone is that he looks like a scary biker, lol.

He seems to go from horribly passive aggressive muttering insulting things about me (and possibly the other roomate), to shouting random things to himself in his bedroom, like how a child would react to video game (if that makes sense). Cackling like a goblin at nothing or just swearing to himself.

It's like I am disrupting his...routine, or calm, or something.

He doesn't seem to have an awareness of what hour of the night it is, or how loud he is.

He absolutely hogs kitchen space and has 3 full units to himself. I get one. And he makes multiple meals a day, like I mean micro meals.

Again let me reiterate. He has this gargantuan obsession with the bathroom which he likes to keep clean (as we all do) but that's not the problem I have, the main problem I have is that he leaves random scribbles/words of the day in marker ON THE FUCKING BATHROOM MIRROR.

As I said before, he has very little to say about the living room as the other roommate wouldn't be long telling him where to get off and the living room is a tip.

I came to the conclusion that either he is some extremely intellectual kid with some ambiguous disorder, is in the process of some kind of serious mental health crisis, is just an eccentric arsehole, or it is all some ploy to make me leave so he can move a friend in.

But I would go with one or both of the above.

As an aside, he sort of keeps it together for phone calls and almost seems normal talking about his job, but there are hints of him derailing and passing it off as "quirky".

This isn't a hate post, or a complaint post, this is something I am witnessing in real time.

I know I shouldn't be fishing for armchair psychology, but this guy is clearly troubled and drives people away.

The landlord would never get rid of him, because he probably pays consistently. I think he just doesn't want to deal with it either.