<prompt> Human: When I signed up to move into my apartment nearly 2 years ago, I was expecting to move into a two bed-room1 bathroom apartment, where I would live with one person and get my own room. My housemate had already been living there for over a year, so I was getting his rent-controlled rate, and we agreed to split the cost of the 2,000 apartment straight down the middle basically 1,000 rent each. I knew he had a cat going into the arrangement, so I also accepted that. What I didnt know after moving in, however, was that his room is slightly bigger than mine. Again, I probably should have looked at that more closely before I agreed to the terms and moved in, so thats technically on me. I also didnt know that his girl friend basically lived with him. This was something that was not conveyed to me. She technically had a place in a city an hour away, but thats only where she stored her clothes and belongings she effectively slept at my apartment every night and was home more often than I was. She lived with us for about a year and then decided to quit her job. My house mate then asked if it was cool if she moved out of her place and moved up all of her stuff into ours to make it official. He said that she would be willing to pay 400 a month. On an apartment that costs roughly 2,000per month, this effectively meant that my 1,000 half went down to 800 200 savings for me. I didnt think thats a fair payment, but since Im a nice person, I told them that I would agree with it for the time being, but that we should revisit the rate once she landed a job. Well, I just found out last night that she just got a job she starts Monday and they havent talked to me about re-negotiating the rent. So I figured I would take it upon myself to initiate the conversation. Because Im not good at confrontations like that, and I do think my house mate takes advantage of my niceness, my question is: how do I go about doing that? Im not suggesting that she pay a third of the rent, since she and my housemate share a room, but they take up most of the shared living space all the time. They both get home before I do and are plopped up in the living room watching the big screen TV all day. They basically own the living room. Plus, they both got a dog without my permission, which is kind of a dick move IMO because I told them that my GF who visits on the weekend gets anxious around dogs. Now, I live with my house mate, his GF, cat, and dog. I signed up to live with one person, but it feels like Im now living with a family. I get along with his GF okay, but Im not sure how to come up with an equation to calculate fair rent among the three of us and to best communicate that. Do yall have any suggestions for me?  <response>: Honestly it sounds like rent isnt the issue but communication. The current pay split makes sense. As far as owning the living room that is a conversation you need to have with your roommates. Same with the dog. The dog is already there so maybe it stays in their room when your GF visits. They only other real option for you if you cant do that or it fails is to move. 