His parents live in another country. I'm ok with them, but one minute they don't like her, and the next they defend her...it's really weird, and I call them out on it. I recently found out however that my SIL was gossiping about me to her (my MIL slipped). So, I got upset with MIL and said that the next time this happens, to shut her down, and not make her feel welcome to say the things she said.So why do you now have a problem with his parents as well? How often do you both go and see them? What sort of things does the SIL do?
The things she does
-went on vacation once with all of his side...my daughter wet her pants, we had to stop off at a store to get her new pants. They all told us they would wait for us to decide on lunch. She calls me while on line to ask how long we would be so that they could wait. On the way back to them, I get a text in groupchat with address of a restaurant. When I asked her why she didn't wait being that we spoke about it over the phone, she acted like she forgot about the phone call and what was said (she called me though)... IMO she made the call so that there was no proof of the conversation, so she could play dumb.
-at a family party, she was supposed to bring her son, but didn't. When I inquired, she said "my son didn't want to babysit your daughter".
-recently we were supposed to go pumpkin picking. She created a group chat with all the people who were supposed to go. The messages were unclear (because they had all spoken about the event the night before, which I wasn't there for. I wasn't sure about the date or anything, and when I inquired, she did not respond to my text (and IMO if you're organizing the event, it's up to you to answer people). When someone else wrote something in the chat, she answered immediately. So we were deliberately left out.
The list goes on and on lol. That's why I'm convinced she's a covert narc.