
Polyamory is somewhat common in the rp community but it's like SUPER common in FFXIV (I'm guessing because of how many players play Miqote and the Miqote backstory in general). Armi was even in a polyamorous relationship for a very short while (Though she had no idea that's what it was, she just did what her Miqote partner was comfortable with) but currently she is in a very happy monogamous relationship with a Hyur and was in a monogamous relationship with a Miqote for a few months before that. It exists!