Another difficult case comes to mind, also from a reader: You’re having sex with your wife or husband and fantasizing about someone else. Later, your spouse has the temerity to ask what you were thinking about when you were having sex. The honest answer is that you were thinking about someone else. But let’s say that you know your spouse will not do well with this information. He or she will view it as a real breach of trust, rather than just a natural consequence of having a human imagination. Howard: Well, that’s another case in which, when you first suspect this, it’s probably time to have
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