omg - Thank you for this thread, OP. It sounds like we are related (and to some of the other PPs, too).
My SIL is ALWAYS the one to start trouble (every fight that ever occurs in their family starts with her). This last dramafest, I thought - yes, this does not involve me AT ALL. I'm in the clear. Well, she managed to try to pull me in. I refused to engage, but she complained to her mother (my MIL) about her brother/me. My husband (much to my surprise) stood up to his mother/sister and refused to let them say a word about me. He said, this does not involve her. She did nothing to anyone. Why do you think it's ok to treat her this way?
This is HUGE for my DH. He is really, really close to his mother and I never thought he'd stand up to them.
Anyway, they invited wine for a reason. Enjoy and let your miserable SILs stew in their own juices
