I think I’ve finally figured out Nia
As someone that grew up in chaos and in multiple homes and divorced parents with custody and mental health issues, I’ve really struggled to understand Nia and her perspective with the group and Danny until a rewatch of the finale and then it clicked. Nia says very clearly she’s desperate for normalcy and stability, but it’s in SPITE of Danny. She’s desperate for those things but chose a chaotic, selfish man and in her determination for peace she’s chosen to actively aggressively manage him and force him into her manufactured world view. Anyone that calls him out are actively working against her perceived perfect reality and it’s less work for her to fight everyone else then face the reality that Danny is a bad guy and the cause of her unhappiness. She’s not ready to see the truth.