I call these people who thrive with their multiple partners polysecure. This is the state of being both securely attached to multiple romantic partners and having enough internal security to be able to navigate the structural relationship insecurity inherent to nonmonogamy, as well as the increased complexity and uncertainty that occurs when having multiple partners and metamours. More succinctly, being polysecure is having secure attachment with yourself and your multiple partners. Polysecure people are functioning securely both interpersonally and intrapersonally,
