If you are not aware - the desire to spread its genome is laid down in almost every male. Therefore, the mistress is an elementary necessity (do not agree - argue with psychologists and the subconscious of the male, it is a limited number of eggs and a long time of delivery, and, for example, I will cut off enough seed material for a small village at night ;-) ) If the husband is suspected of betrayal, congratulations - the problem is in you. You cannot / do not want / can not build a family life - do not complain.
Look for the problem in yourself, not as a cleaning.
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Same with Sam. Evolution has passed by me, I am still at the level of a monkey and I vigorously defend my right not to become a reasonable man, but to live as a primate. or the desire is justified and even read a couple of wise articles written by the same near-leaving apes lovers to inject their seed material to the right and to the left. Call things by their names, you are a martyr. Well, or a Neanderthal, it’s up to you. The brain is not sufficiently developed.