Marriage is a commitment that requires both love and hard work to make it last. Unfortunately, the wife in question has denied her husband sexual relations for 6 years! Sex is a vital aspect of marriage and should be something that benefits both parties, not used as a tool to gain power over another person.
The wife in this situation is clearly in the wrong here. The least she could have done is talk about her feelings but instead, she's taken the path of denying sex as the solution to the problem when in reality, she's made the situation worse.
While I don't condone the husband's course of action to remedy this issue, the truth of the matter is simple. When you've entered a marriage where a vital part of it is missing, a person will go elsewhere to find the fulfillment they need.
This is a brilliant example of how feminism has degenerated into a fascists movement that promotes women as doing whatever they please with no regard to their partners and that men as expendable assets.
And we have the venomous propaganda of "Sex and the City" and the nonsensical warblings of Beyonce et al for insulting our collective intelligence.