What strange tangents this thread went off on!
In answer to your question @Sidebeforeself :
I don't have a group of 'girls', just a few individual friends who may or may not have met each other over the years at social events. They are all different, and I value them for all their differences.
I have a good friend I've been friends with for decades who does have a group of 'girls', said with affection. They've known each other since they worked together in their 20s. They're in their 60s and 70s now, and I've socialised with them too at parties from time to time over the years, though I am not one of the group.
They never bitch about one another, and are all genuinely good friends, and have a lot of fun times together.
What has become clear over many years, is they are good friends, but they are not 'close' friends. There is a difference. For example, when one left her abusive husband, it was a shock to everyone in the group. They had no clue beforehand. Once they knew, they were all very supportive, and life moved on, 'the girls' intact.
In the beginning, when I first got to know my friend, and soon met her 'girls', I admit I was quite envious. But over time as it became clear they were good friends but not that close, I realised that a group of friends such as they were, however fun and lovely they are, a group like that wasn't for me.
I prefer to have fewer friends that I've got to know and become close to over time. I find that more emotionally fulfilling.