Did the husband and the second wife wrong each other, and is it permissible for the wife to remain in this prolonged marriage that lacks foundation, especially with her feeling of the husband's lack of desire for her, and does the wife have the right to request a divorce in this situation?

Marrying a man who is already married without the consent of one's parents or the presence of a guardian is a mistake. A wife is not obligated to humble herself before her husband's first wife or to take care of her children. Causing separation between spouses is a devilish act. Injustice will be darknesses on the Day of Resurrection, and justice between wives is obligatory.