AITA for making my friend pay rent when her boyfriend moved in?

I (40m) own a 4 bedroom house that my friend (35f) has been renting a room in for a few months. The other bedroom is rented to a single guy.<br><br>My friend was, up until a few weeks ago, in a long distance relationship with her boyfriend. Everything was fine, he lives some 3 hours away and occasionally would come to our city to spend the weekend with her. No one ever mentioned anything about him even potentially moving here, so it wasn't a concern.<br><br>Last month she told me that her boyfriend had got a job in our city and she had told him we would pick him up from the train station on this specific day and he will live with us from now on. I asked her to clarify what she meant by live with us, she basically said that he will be moving into the room she rents.<br><br>I told her that wasn't happening. I asked her if she had told me that her boyfriend was moving in, and she said no, she hadn't thought of that. I told her that she had to ask me for permission for that. And that I wasn't comfortable with her boyfriend just moving in.<br><br>She said it was a woman's house where she grew up and as a man, I wouldn't be able to understand the struggling of moving to a new place, starting a new job, and living away from where your friends and family are. I told her that wasn't a valid reason for me and that her boyfriend can sleep on the couch while he is looking for a place to live. She said that his lease at home was ending on the day he was moving here, and I said that he could sleep on the couch until he found a place.<br><br>She said there was no need for that, since she had told her boyfriend he can live with her from now on. I told her that I wasn't going to allow him to live here, and she said that she had already told him he was basically moving in with her when he left his parents house. I said that was very disrespectful, and she just kept repeating the fact that she had already basically sold his stuff and told him he was moving here.<br><br>She then said she couldn't afford paying double rent. I said that we hadn't discussed anything, but that she could pay the fee I charged for a two bedroom and let him sleep in the living room if she wanted. She said it was my fault that her boyfriend had no place to live, and that I could understand her if I could just put myself in her shoes. I said I couldn't, I wasn't a woman. She asked my girlfriend, who was standing nearby, if she could understand as a woman, my girlfriend said she couldn't, but that it wasn't really fair for us to have to cope with a man we didn't even know living with us.<br><br>My girlfriend then said that she was being awfully unfair, telling her boyfriend that he could move in with her without asking us about it first. My friend got basically too big for her britches and started shouting at my girlfriend, saying that it was a woman's house and she was the woman of the house, that basically this was her home as much as it was mine and she could do whatever she wanted in her own home, including live with her boyfriend.<br><br>That was the straw that broke the camel's back for me. I told her that she was being entirely unreasonable, that yes she paid rent but so did the other guy and neither of them owned any part of this house, even if she had told her boyfriend he could live here, that wasn't my fault, I hadn't been made aware of that and the day he moved in, I would either double her rent or call the police, because he was breaking and entering and trespassing.<br><br>She called me an asshole, but the next day she came to me and said basically that she couldn't afford to pay double rent but she would "allow" her boyfriend to live in the living room for the price of a single bedroom, which was $100 less than what I charged her, and that she would be giving me the money for him, since he didn't have a job yet and she was paying for his expenses.<br><br>I said hell no, that she was being awfully unreasonable and that if she hadn't told her boyfriend he could move here, none of this would've been a problem. I also told her that it wasn't HER house, and that she was being incredibly rude, since renting a room didn't give her the right to decide who lived there too, that she was only paying for a room. I basically gave her an ultimatum where either she told her boyfriend to sleep somewhere else, or I would tell him.<br><br>She called her boyfriend and basically told him that I was being a dick, and he apologized profusely, saying that he had no idea she had basically gone behind my back and told him he could live with her. He basically said that he had no place to stay, so he would sleep on the couch, but that he didn't want to get in the middle of this, especially since he wasn't even sure if he would like living in our city. They talked for a while and I told her that I would talk to my girlfriend and we would see what we could do.<br><br>My girlfriend said that as long as he was willing to pay us, we could let him sleep in the living room. I told my friend that she needed to stop treating this house like it was hers, since it wasn't. And she needed to understand that while we weren't trying to make it hard for her, we had lives and expenses and we couldn't just let some guy live here because the owner of the room he was sleeping in said he could.<br><br>She basically said that it was either we let him live here or I was kicking her out. I gave her notice on the spot, and she said that I was being unfair. I said that she had told her boyfriend he could live here without asking me, which was basically telling him he could live here for free. I said that I would allow him to sleep on the couch until she moved out, but she needed to understand that she couldn't decide basically who could live in this house, she wasn't the owner, especially with other people living there, and she couldn't just decide these things on her own.