Your SIL is a piece of work. Hope you guys don't let it affect you.
Makes me incredibly glad that I live on the other side of the world.

I feel bad for her husband though. The kid, too. I can't see that marriage as having happened for any reason apart from him knocking her up. She was acting like a completely different person in front of him and his family and then treating her own family members like dirt when they weren't around. I doubt she'll be able to keep up the act forever and when the real crazy-psycho comes out (if it hasn't already), it's not gonna pretty. Won't surprise me in the slightest if a divorce happens later on. Come to think of it, she acted like that in front of me and when my parents came to visit when I was living over there and didn't turn into
crazy bitch in front of me for a few months.
The worst thing I ever saw was her kicking the door open to her parents' house, demanding money, and then going into their bedroom and just wrecking shit until they finally gave it to her. She then turned around slammed the door and left. She drove like one hour each way, during the middle of the week, to do this. Then there was last year, when we went over there for the wedding. She told my wife not to come after my wife said she was feeling a little sick after the flight, which pissed my wife off like crazy. We were largely ignored at the ceremony. My favorite part was that everyone's seats at the reception had little cards with their names and notes on the back of them with a personal message from the bride or groom. Everyone got one except for myself and her parents. I think my wife, too. Forget me...I just couldn't believe that she treated her parents like shit like this. Completely snubbed them. Then later on I see her mom writing thank you notes
for her daughter for presents she received and getting ready to go deliver them all over the prefecture to people. I couldn't believe that they were going to do this. I was told that if her parents didn't do it, she never would.
They spoiled her like crazy as a child and this is the result. My wife likes to tell me that during high school, her sister would make her dad drive her to school every day. Note that this was a school in town, and if you're familiar with Japan, you know that kids walk or bike to school.
Not her. Probably needs to see a therapist or whatever and get on some meds, but I doubt it will ever happen.