Is forgiving her husband for infidelity a bad example to her children? It sounds to me like the Christian way. If that couple can save their marriage, it will be because of the wife's love.
How many of you have ever prayed for Ted Haggard? Is your sin any more appealing to God than his? Does not God forgive if he will truly repent? Is it possible that he might go to heaven and you not be there when your name is called?