37. Dear older family friend was dressed and ready for my wedding, had a driver ready to bring him and his fiancée (for context, they were in their mid 70s).

She came out not ready and declared that she was now too elderly to do social engagements or travel and it was time for them to start seriously looking at retirement communities.
Caused a big fight and they ended up cutting ties because of it. And he missed my wedding and never forgave her for it. 😅