So we were at the wedding reception of a friend I've known for a long time. Her cousin started playing the guitar and singing. My DH was being introduced to some of the people he hadn't met before and naturally there was a bit of good humoured banter going on. Wasn't even aware DH was being "loud" but bride marched over and says "Can you not talk just now!" to DH then marched off. DH was offended as I was and was wanting to leave initially but he calmed down.
To be fair she explained herself later on and told us that her cousin has apsergers and she didn't want him to be put off by the noise. If she had told us that at the time we would have understood a bit better but AIBU to have been pissed off with her for this? I mean ffs I would be delighted if my friends were having a good time getting to know each other and would never dream of speaking to my guests like that. If she wanted silence whilst her cousin was playing she should have announced it.