OK, I see.
>There may be things about it that she knows that aren't public. It also means she can't write a "tell-all" book about it or get paid to appear on talk shows to discuss it.
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>>What's the point of her not talking, when his adultery is common knowledge already?
Difference in opinions hath cost many millions of lives: for instance, whether flesh be bread, or bread be flesh; whether whistling be a vice or a virtue; whether it be better to kiss a post, or throw it into the fire... (from Gulliver's Travels)