We were all in multiple relationships, I dunno what to tell you. It is common in polyamory. Having kitchen table polyamory as we did isn't uncommon either, though not necessarily the norm as more formerly monogamous people try on a pair of polyamory pants for themselves. They often decide that they'd rather not know who their partner is dating. As for me and mine, we enjoy sharing space with our metamours. Seeing my partners being romantic with their other partners makes my heart feel super happy. And the people I date tend to feel the same way when seeing me happy with my other partners. 😊