I think I've officially reached the point where I can say I hate my sister-in-law. We were on the verge of arguing at work because she heard about a fight that I had with my mom that started because I came home to eat a box of Bagel Bites that my mom had just bought the night before when she had finally gone shopping, only to find that my niece and nephew had already eaten it when they got home from school. It was the fact that they ate it that got me mad, but rather the fact that they were home alone and were using the microwave on their own without any permission, since they got out of school before my mom got home from work. My niece and nephew are 8 and 12 respectively, and they're very irresponsible, yet they've been raised to do whatever they want, wherever they want with no respect to whoever's home they are in.
My SIL was under the impression that I was being petty because the kids ate the food, but when I explained what was really bothering me, she did what she always does and insisted that her version of the truth was correct and that I was lying, even though she was not even around to see what happened. It escalated into her getting super defensive towards her kids, insulting me by saying she raised them to be more independent, unlike myself. She even sent me a bunch of nasty emails, none of which I replied to, and I even left my phone recording while I left the room to hear all of the stuff she was saying about me, even though she was accusing me of talking behind her back.
I can already see myself being in a lot of trouble with everyone around me since she's most likely going to tell my brother, who will yell at my mom who will be determined to punish me for making him upset.