Maya — the last message in this export is 193 days old. It is a link, and it is from Dan, and it collected one reaction.
You have been in this group for five years and two months. There are 15,412 messages in the file, and I read all of them, in order, with the dates attached.
What follows is not a verdict on five people and it is not a diagnosis of anyone, including you. It is a description of what the messages do: who starts, who answers, what gets promised, what happens, and which week the rhythm changed.
One thing worth saying before the rest of it. This group is not broken. Nobody in here is cruel, and nothing in the thread is a betrayal. It is simply quieter than it was, and the distance between those two sentences is the whole report.
I will use your words where your words are clearest. Every claim below is attached to a line you can find in your own file.