My(23F) flatmate(30-ish M) has turned the common room into his personal office and leisure space. How can I stop him being inconsiderate when talking is not an option?

Basically the title, but there's quite a bit more to it.

I live in a decently large flat with six other people, one of which is my partner. Other than the kitchen getting pretty cramped at times, we managed okay, up until this dude moved in, at least.

Me, my partner and the other four are quiet, clean and laid back people. After guy moved in, the kitchen space got incredibly dirty on a regular basis, and my and my bf's things were used by him all the time. He would also listen to very loud music in our small yeard, which is right outside my window. Since my bf and I were primarily affected by his shenanigans, we tried talking to him, but if anything he seemed to ignore it. After countless times and countless methods of approach, he finally stopped after my bf and I posted passive agressive notes on the kitchen wall and on all of our things he was regularly using without permission. This was only the beginning.

The guy seems to, for some reason, really hate his room. Before corona he would be gone most of the day. But since lockdown he spends the entire day in our common area, doing all his work and spending all his leisure time there. Now if he were quiet I wouldn't have an issue, but he takes calls on loudspeaker (doesn't help that he's got the loudest voice I've ever heard), watches films (without headphones) and because he is a gym trainer he gives lessons via video and we have to hear everything because he, again, won't use headphones. Also every time we have to go past we have to go between him and his laptop, so we have to show on his video calls.

Back when I still talked to him, he would also complain about the smell whenever I cooked, because the kitchen is right next to the common space and he can't bear smelling food because apparently he only eats 'for sustenance'. Everyone else avoids spending time there now and I do as well, but today I had to take a call outside my room because my bf wasn't feeling well. I was lucky he was out, but as soon as he came back, he took his usual place and stared calling people, at which point I had to hang up my call because his voice was all my friends could hear on their side.

He also does other miscellaneous stuff like going around with only a bath towel on, which makes me kind of uncomfortable, but it's the noise I really have an issue with.

I have talked to him about all this stuff and all he has done is berate and gaslight me, to the point where some of my past experiences got triggered and I cannot stand to be around him anymore. He has taken this as a huge offense and publicly complained on our group chat that I'm being rude and not talking to him. So yeah, talking to him doesn't work at all, so it's not an option. I don't know to what extent the others are bothered, because nobody has mentioned anything, but my boyfriend agrees he's being really inconsiderate.

TL;DR: title

Submitted July 05, 2020 at 12:03PM by turtlemari https://ift.tt/2BDTSu4