I'll try and keep it brief. Long-standing group of 12 friends. Met at pre-natal yoga. Do things in pairs sometimes but rarely bigger without whole group being involved.
A few months ago one of them organised a day out drinking champagne in London. Only invited 8 of the group. Based on the fact that the other 4 are not drinkers they weren't invited or told about it. I was one of the 8 who went. I feel awful now. One of the 4 has found out and is upset. She feels it's not for others to judge what she'd be interested in, and that there was an ulterior motive for not being included.
Should we tell the other 3?