My MIL accused me of keeping her from her grandchild before he was even born, and now she hasn't spoken to us in over a year.

Hi everyone, I've recently joined this community and wanted to share my experience with my MIL.

Back in March 2025, I was around 3 to 4 months pregnant with our son. One evening, I was cat-sitting for my parents, so I wasn't present when this happened. My fiancé had gone to his parents' house for a family game night.

A week before this, it had been Mother's Day. My fiancé had messaged his mum asking what she was doing, and she told him she was going out for lunch with one of his sisters. He assumed she already had plans and didn't want to intrude. A week later, when he attended the family game night, he brought along a bottle of win and a Mother's Day card as a belated gift.

Instead of accepting it, my MIL became upset and told him how hurt she was that we hadn't been there for her on Mother's Day. After my fiancé explained that he genuinely thought she was busy because of her lunch plans, the conversation escalated.

My MIL then shifted the topic entirely and accused us of excluding her from our unborn child's life. At this point, I was still pregnant. She already has another grandchild through my fiancé's brother and his partner, who live in Ireland, while we live only five minutes away from my in-laws. Despite this, she claimed that we were going to keep our son away from her as well.

She also accused me of stopping my fiancé from spending time with his family, which couldn't be further from the truth. Anyone who knows me would laugh at the suggestion. I've never tried to interfere with his relationship with his family, and I've always encouraged him to maintain those connections.

According to my fiancé, his mum had been drinking quite heavily that evening and was noticeably intoxicated. He tried to de-escalate the situation and suggested that they discuss everythign another time when emotions weren't running so high and alcohol wasn't involved.

That's when my FIL (my fiancé's stepfather) stood up and told him to "get the f**k out of my house".

My fiancé immediately got up and left.

Since that night, neither of them has spoken to us. There has been no apology, no attempt to resolve things, and no effort to meet our son. Our little boy is now nearly 11 months old, and they have completely missed out on his entire life so far because of assumptions they made before he was even born.

I still struggle to understand how a misunderstanding about Mother's Day turned into accusations that we were excluding them from their grandchild's life, especially when no such plans ever existed. It feels like they created a narrative in their heads and then punished us for it.

Has anyone else dealt with grandparents who essentially cut themselves off because they assumed they were going to be excluded?