Originally Posted by Netav
Nah but, unlike "true poly" Halsin or w/e, who stright up says it to your character upon relationship start, they are not "true poly". They never say it, because they are only ok with an open relationship and treat Halsin as side fun(even in their dialogues they state it clearly) for Tav. No way they share emotionally, it's pretty clear in act2.

Polyamory is a form of consensual non-monogamy, in which all parties are aware of and consent to practice non-monogamy. Being okay with some side fun is also a form of polyamory. Your examples are just about how it's not implemented well in the game. They just added for sexy reasons, choose the characters for meta reasons and never bothered to do it well.