My new place!

This is my new place! Once I found a job, I went room hunting and this is the place I found it's really nice and close to work. The only problem is that my landlord seem to not mind her business and want to control the house as she lives downstairs but comes upstairs to use the kitchen. My flatmate, Christina, and I are a bit worried as it is not her business who we bring over, what time and/or for how long. She can only complain if we make too much noise or destroy the place or something. I sure hope that she'll change her attitude as she was very disrespecfull the other day as she was not happy that I had some friends over from Montreal for a couple of nights. To be nice, I told her I would have people over but she, in front of them told me she didn't like me having people over for more than one night. One, it is not her business that I have people over at my place two, it was so rude and disrespectful to have discussed this in front of them as a result, the will be leaving my place earlier. Her coming upstairs to cook doesn't give her the autority to tell me what I'm allowed and what I'm not allowed. If it bothers my flatmates, it's up to them to tell me and it really didn't bother Christina. Well, we'll see how things goes and I'll also have a talk with her about minding her own business.