Relationships can become one-sided in several ways. This is why it's vital to learn the signs of this Polyamory Red Flag.
A Polyamory Red Flag everyone needs to look out for, especially when you're are starting out, is when it favours one person over all others.
The problem with One-Sided Polyamory is that it can come about through several avenues, some more toxic than others. It can come from selfishness, when someone simply doesn't care about fairness in their relationships. There's toxic monogamy and partners who insist on maintaining a sense of hierarchy. And then there's also emotional blindness, when a partner simply can't see beyond their own needs.
But it doesn't matter why or how polyamory can become one-sided. All that matters is that it's toxic, and seeing it develop is a Polyamory Red Flag.