Hello everyone! I'm new here and just want to rant about my SIL.
Family background: MIL, FIL, My husband (oldest child), SIL (second oldest), BIL (the surprise! and youngest)
Lived with my in-laws for TOO LONG. My MIL and I had lots of things in common, and both my mother and myself got the feeling I was "the daughter she always wanted." This made my SIL uncontrollably jealous. SIL was 21/22 when I moved in and for the record, she is not mentally handicapped.
She was so jealous to the point that when I'd walk into the room to talk to my MIL, she'd start humming very, very loudly or turn up the television so loudly that people across the street could hear it. Every time I wrote something anywhere (grocery store list, calendar, notes, etc.) it would get either blacked out with a huge black marker pen or thrown away or put in the cats litter tray, etc.
Any time anyone gave me any attention, she always had to bring it back to herself, ie if the cat sat on my lap, she would bring food in so it would go to her, or if someone gave something to me, she had to give them three things better.
She was like this until her child was about six months old (so roughly until 10 months ago). She's gotten better to the point of not being jealous any more because MIL loves children and she finally has the grandchild she always wanted (granted, 5-6 years before she wanted one!) so she gets all the love and attention she wants now. ♥
You all will know my SIL when you see her, she's green, ridges in on a broomstick, has an evil laugh, and has stripped socks. I still can't stand her because of the way she treated me, but oh well, don't have to see her.