According to the Shevat Sofer that might not be so good. She becomes an ezer, a help by being kenegdo, she can see his faults more than he can, so by disagreeing, he corrects himself and vice versa.
Maybe it is hinted in this weeks Parsha where the Torah is also talking to marriage mates to see each other as shoftim and shotrim to help each other correct their ways.
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