Well, since there was no infidelity, I would imagine it was a case of her conscience getting the better of her. A tip -- it's all right to marry a woman who's better looking than you, a woman that's as smart or smarter than you or a woman who earns/can earn more than you (substitute man for woman as you will) but marrying a woman who is all three is just asking for trouble -- especially if she's a cold, heartless, materialistic bitch with no conscience -- but I'm not bitter.