Rabbi Yisrael Salanter

On the Torah’s statement that a wife was created as “ezer kenegdo”, a helpmate against him,” the Talmud explains, “If he is worthy, she is a helpmate. If he is not worthy, she is against him.” R’ Yisrael added, “This applies to every minute of a person’s life. Whenever I improve myself, my wife becomes better too.”

From Sparks of Mussar by R Chaim Ephraim Zaitchik