This is mine:
I had been home a couple of days after a caesarean for the birth of my first child and my PIL's were visiting for the day. They had already complained about not being able to stay in our small flat so had stayed in a hotel. It was very good of them to drive the 3hrs down to see us. Looking at the photos of the day, you can see how tired my husband and I were, almost transparent with tiredness. I was already struggling with breastfeeding, had held a baby once in my life before, had no mother or family of my own and no one to support me locally....
a day or so later, my husband tells me that his mom and dad had not felt welcome. I can't remember but the conversation descended into a row as of course, I was to blame for them not feeling welcome.
That incident set the pattern - my husband was a new father with a new family. Did he push back on his parents, did he keep their comments to himself? No - he came straight to me to tell me what I had done wrong.
Roll on 18 yrs from then and I finally in the last couple of years have completely stepped back from my (now alone) MIL. She has been a widow for 10 yrs and if I thought the interference was bad when it was two of them, it became much worse when my FIL died.
There have been many good times, especially when the children were very young, but ultimately my husband's primary emotional connection remained his parents.