A preface about #PolyGraphTheory : All relationships (edges) are between 2 people (nodes), a poly person has one relationship with each partner; a triangle (or thruple if that's your thing) has 3 relationships in it. A quadrangle has 6 relationships in it, etc. (Each graph of partners is fully connected even if some people are not dating, all partners/metas are on a spectrum from complete strangers to intimate lovers, which itself is a one dimensional projection for the convenience of edge weighting)

Any apparently mononormative language is simply a product of treating each relationship, each edge, individually.