How can the first wife protect her dignity and rights without hostility?

Be firm on rights, gentle in manner — seek fairness through the proper channels without personal attacks. Know your rights: maintenance, the rotation of nights, housing and property. Keep written records. Set clear boundaries, for example no discussion of the co-wife in front of the children. If there is a problem, take it to your husband, then to a mediator, and finally to the court if necessary — not to social media. Allah says: repel evil with what is better. Your dignity is preserved when your actions remain fair even though your heart is hurt. See women's rights.