I think man and woman is a very interesting combination. If a man loves his woman, he would protect her. If a woman her man, she would do whatever to please him.
Man is a 莊, woman is a 閒. For any outcome of various issues, it depends on the response of the Man. If Man decides to care his wife, he would leave with his mistress. It is up to him to decide whom he will protect.
But for the wife, she herself has to think whether she is strong enough, (I mean mentally strong, she could live independently without her man), otherwise, she could either (1) pretend to know nothing or (2) do something to please him or forgive him.
As for (1), the result is uncertain, as it is the Man who may ask for divorce if he is really in love with his mistress;
As for (2), she awaits him to return the warm family.
If what I said is correct, the wife is passive position if she is not strong enough.