Boyfriend’s annoying sister.

For context, my boyfriend and I have been together for 3 years, living together for 2 and we have two corky dogs that we love dearly. (Shelter pup and rescue from a mill). My boyfriend’s sister has a toddler, a fiancé, and her own house.

Every time she comes over, she complains about how rowdy our dogs are when people come to our house and that’s like all she talks about the entire time. So if that wasn’t annoying enough, she came over last week and started with the same, “wow you guys should have more people over so they don’t act like this, I’ve never seen such scared dogs, do they act this way every time?” BUT then goes on and on about how stressful of a day she was having already and now my dogs were making it even worse and she was starting to get a headache and her stomach hurts, etc as if it’s my problem that she came to my house where she knows we have dogs that act like this. Instead of watching her son, she starts rummaging through my boyfriend’s year book, looking for her “coworker’s senior picture” for the SECOND time this month. So her son is getting barked at left and right while I try to calm our dogs down, and this child is throwing heavy things, playing with ceramic figurines, and she is looking for a pic of some dude who isn’t her fiancé and father of her child.

I am not rude when I speak back to her about my dogs, but I am direct and my boyfriend doesn’t back me up while his sister acts like this. What can I do to make it known especially to her that I’m tired of it? At this point it feels really disrespectful and she’s made a lot of comments in the past about how she thinks we shouldn’t have dogs because of situations like this. She also acts like she should have a say in her older brother’s personal life all the time and I cannot stand it.