Nicely told story
This is a very interesting and information story of polyamory, and I'm surprised that there have not been more replies to it over the first 8 months that it has been posted. And, as well, it continues to confirm my suspicion that librarians are some of the most interesting people we ever get to know.
And, Julia, by the way, your story is not "long." It is brief and to the point. Look around this forum, and you will see looooooonnnnggg!
And, Julia, really, you are not old!