Maybe you should consider reading my article again. It seems you didn't read to the end.
But I will make will explain it briefly. I practice polyamorous relationship myself and I do know one thing that struggle with is keeping myself from getting jealous when my partner is with someone else. Which is why I don't stay in long term relationships.

Hanks wife and most women feel this way too. They get jealous when their partner takes interest in other people more than they do to them. That's why some married women regrets opening their marriages.

I advocate non-monogamous relationships but I also know it's not for everyone. Some people can control their emotions and not get jealous sharing their partner, while others can't