I find my MIL to be the most annoying person I've ever met. I've known her for 20 years and it's like she has no personality. She usually stays at our house half of the month, every month. By the time she leaves I could literally jump for joy. She literally does nothing except sit in the living room and either watch videos on her phone, or talk to relatives back in her home country. I'm not from the same culture as her so there's a bit of a communication issue as I understand most of the language but can't speak it fluently, plus she has a strong accent (not like her children). So most of the day I'm busy with household chores, cooking, and exercising. I try to stay away from her. The main thing that bugs me the most is she doesn't seem to understand boundaries. I could be in my room, doing whatever, and she'll come in and just stand there watching what I'm doing. Or when I'm cooking, she's like, what are you making, and she'll practically put her face in the pan. She'll stand in one corner just watching. Hell, I could be boiling water and she'll stand there staring at it like it's so interesting. I get that she doesn't have anything to do, but why does she have to watch me? And I know that is an issue I have to work on. I hate being watched. I think maybe I have mild social anxiety. Anyway, the thing is, I end up feeling like such a jerk. I'll mumble under my breath or male gestures behind her back sometimes when she does something super annoying. Even though there's nothing I like about her (and I literally don't have issues with anyone else, I'm a pretty easy going person except when I'm around her), still I wonder if there's something that I need to fix within myself. I do try to tolerate her, but after several days of her presence I start to crack. AITAH? Any advice would be greatly appreciated.