Is OTHER wrong in the post ? POST : So me and my roommate have been pretty good friends but as happens in these situations there have been some difficulties but for the first year things have actually gone pretty well until recently. I'll call my roommate Arthur and his girlfriend Mary.


One other thing I should mention is we live in a house that I'm in the upstairs and hes downstairs, this was his decision as the downstairs has a bit more storage and higher ceilings to fit his television.


Recently he started dating Mary who i feel has been trying to slowly push her way in. I would actually be okay with her moving in, with the condition that this would mean I could move out and she would take over the rent, which may be a bit expensive for Mary but that's not really any of my business.


 I also have a GF I have been dating the entire time we have lived together. She stays over one weekend night a week and visits for about 2 hours from 6 to 8 most weeknights. Since Arthur has started dating Mary she is typically over when I get home from work until my roommate leaves for work in the morning.


On one occasion when she was staying over for the third night consecutively, I texted my roommate that if she was going to move in I would start looking for a new place. He did apologize, said she was over too often and that there had been special circumstances in this case. This would not be a normal thing was what I was assured. For about 2 weeks this was true, Mary only stayed over once or twice and when she was over there was definatemt a reduction in volume so I thought things were on the right track. 


This pattern of her staying over consistently has begun again though with her being over 4 of the last 5 nights to sleep. 


There are two living room areas outside of the bedrooms. His is downstairs. My television is in the upstairs living room which has no separation between it and the kitchen. 


With just Arthur this was never an issue as he generally kept to his own stuff, wouldnt be making excessive noise and usually completed whatever he was doing in an hour at most. 


Mary however loves to bake, and does have a kitchen available at the place that she rents. Usually I'd just go to my room and watch some videos on my phone but I had a hockey game on in the evening that I had no way to record, when I came home I didn't even have the time to finish serving the pizza I'd picked up for my GF and myself on the way home for work before they were climbing over me to get to the stove. They had also been home for at least an hour and a half before this. 


Arthur notices that I give Mary a look when I have to carry my pizza around her to the plates I had just set on the counter, that she decided to stand between myself and the box. Arthur asks if I have a problem with them being upstairs and I awnser that I dont mind having him upstairs, but that his girlfriend doesn't need to be baking him cookies here, she could do that at her house and bring them here. She stormed off downstairs and my roommate proceeded to be upstairs until midnight making his cookies (from 6:30 PM). 


I just dont feel comfortable.coming home from work and having them in my space. It also bothers me how long their sessions upstairs seem to be. Generally when they bake it takes between 6-8 hours until I can be sure that a stranger isn't going to be in my living area. I probably would not have said anything if not asked but now I feel like I need to set some boundaries and I'm wondering if people would think these rules are too strong. 

These rules would also apply to my girlfriend as well as his. 
1. 2 Overnights per 7 days (I was thinking 3 but I feel like any leeway I give them they will take advantage of)
2. Guests should ask permission before parking in driveway. (Takes my spot every night I come home and makes a big stink when I get her to move). 
3. 24 Hour notice if guests are going to be in the other person's living space
4. Guests may not use kitchen or laundry appliances
5. Guests should only arrive when invited ( Mary likes to show up and bang on the door at night to wake her boyfriend up to let her in, it doesn't bug me as I usually stay up later but its knocked some of my valuables off shelves). If they arrive unannounced they should contact the resident by phone instead of body checking the house
6. Guests should clean up any messes they leave in the house. ( I dont mind if my roommate leaves stuff in the sink for a day or two, I'll usually even clean it as that's usually easy as putting it into the dishwasher after emptying, but I'm not cleaning up after her baking and he doesn't either)

Are these fair rules or AITA? 