It’s an issue of social responsibility. The implied effect of the affair is that it causes pain and suffering to a third party. Catherine’s consent to the affair, knowing that a third person would be hurt as a direct result of her acquiescence, makes her a party to the effect.
It takes two to tango when it comes to the affair, and both parties’ actions create a consequence that is harmful to a third party.
In a society that is diverse in culture, morals, beliefs, we are all bound by the letter of the law. The intent of the law is to uphold a common set of moral beliefs, in this case, that marriage and fidelity is both sacred and a legal contract of exclusivity.
By Catherine being a party to violating the moral contract (an ‘accessory’ if you will), her knowledge of her actions and the implied consequences that will result from her actions, make her a party to the dissolution of the contract between the husband and wife.
If we all have differing morals, is it not our responsibility to respect that our morals (or lack thereof) come at the expense of the destruction or demoralization of another? Whether you know that person or not, you exist in the same society, use the same resources (literally in this case), and abide by the same laws.
In America, our moral standards are based on Christian/Deist beliefs. If you don’t believe in those religions, so be it. But our society survives and thrives because people have enough self-respect, and respect for their fellow citizens to respect their morals and beliefs, especially if in not doing so, you cause injury to another citizen.
If you put the shoe on the other foot, meaning, you were the Wife, how would you feel about the mistress? Would you simply say “well, she was just a vessel for my husband to deposit his umm…” you get the picture.
The husband obviously violated his contract by emotionally and physically divesting from his wife, without her knowledge or consent. Is Catherine, knowing that his actions are injurious to the wife, and “lending” herself to that action and result, a party to the demoralization of the wife?
Look at the effects of said action. Look at the cause (two people agreeing to an illicit affair, in spite of the possible consequences). The fact that it is devious, covert, and hidden from the wife, implies that both parties of the affair know it’s wrong. By that argument, would it matter if Catherine and ‘hubby’ did the deed in the husband’s bed, knowing the wife was coming home? Do you think Catherine would be “smarter” than that?
If she didn’t think her actions made her culpable, then, would Catherine be equally ambivalent about notifying the wife ahead of time? How about this: Catherine giving said wife a “courtesy call” that she’ll be bonking her husband in their bed before she gets home, but ‘promises’ to change the sheets when they’re done? How absurd would that be?
Although this article may imply bias (it’s from a recovery site for those who find themselves in the wife’s position), but it is pretty plain to see that because of the actions of two people, the effect is the injury to another person. Check it out and let me know what you think:
http://www.network54.com/Realm/HealingHeart/batinfid.html
In sum: we, as citizens abiding by a common law based on a common set of values/principles, have a human moral obligation to take care of one another. Respecting another’s beliefs, values, and contracts (i.e. marriage), is the foundation for a just society. This would be the case in infidelity (illegal in some states), and any other illicit activity.
I’m now going to load a bong and leave it outside with a lighter at the local park. I’m not responsible if some parent “let’s their kids” experiment with it. And in California, I have a license to use said substance, so I’m not breaking a law; it’s the parent’s fault for not educating their kids about using someone else’s stash…
Preposterous…
Edit: I posted in the wrong thread!!! Sorry, I meant to post this here