Wrote about this before but in a nutshell...
Dh fell out with his sister 6 years ago.
I tried to sort things out between them but it escalated -her attacking us both on social media to other family members nc since.
Mil very much sided with sil.
Examples such as refusing to see our dd on Xmas as sil banned it.
When I was pregnant with ds Dh and I decided to get married finally- mil was furious that we weren’t inviting sil. Mil blamed me shouting at me in front of dd while I was pregnant.
Contact with mil continued after she apologised but she upset me on my wedding day - refusing to speak to me, trying to cause argument with my mother.
I still remained civil.
When ds was born he was very poorly and in and out hospital- one occasion very seriously ill and in for 10 days no contact from mil no visits no offers of help or anything.
Her complete disregard over ds meant I could no longer be civil and I went nc.
This has been the situation for nearly 3 years now and Dh refusing to go to any family events with wider family therefore the some family have never met our dc.
Yest was dh’s Nieces wedding I knew I could not go knowing no one knows the narrative bar what mil and sil have told them.
Dh went on his own which must have been tough as he’s stuggling with anxiety atm.
Not one family member asked why me and kids werent there- they don’t know the truth and it’s hurtful that they must all think I’m at fault.
This situation seems unsustainable my kids still see mil on a fortnightly basis and I go out to avoid her.