I am polyamorous. I have been with the same man for 21 years and the same woman for 11. I’m what I like to call a “serial trinogamist”. I don’t keep a polycule, we don’t go to meetups, and nobody wears collars or lives in their mother’s basements.
In the window between obedient and married & freely committed and secure, I learned what kind of love works for me, and I live according to that love. I am very lucky that I met my male partner early in that discovery phase, and after much back and forth and several years of watching each other date, we realized that each of us would only be happy if we served each others needs. One of mine is that I balance my romantic interests equally with a female partner.
How that works is a story for another time, and not central to my writing here, but I often reference one partner or another and that can be confusing for anyone who tries to keep up. For the moment this is all the explanation you get.