I wanted to include links to other related communities in this community. I was trying to come up with terms for all these related relationship types, and then I remembered that this venn existed. I’ve seen numerous versions of this previously. This one happens to come from (https://polyadvisor.com/wp-content/uploads/2019/08/nonmonogamy3-large-768x512.png) or REALLY ENORMOUS (https://www.xeromag.com/sexualinformatics/nonmonogamy2.5.2.gif) See, I even credited my source. :-D