The quality of the relationship with your mother-in-law can develop independently of your marriage. She might not allow herself to get to know you personally at all, but instead focus on the idea that an outsider is taking away her child.
To better understand this dynamic, we went around the internet and collected a bunch of stories where MILs went completely off the rails. Whether they were offering unsolicited parenting advice or criticizing a spouse's character, these confessions show just how unpredictable and unfiltered a mother-in-law can be when emotions take over.