It can be lonely for women who believe their husband is cheating on them.  There is the ethical side of the scenario which is emotionally devastating, but there is another side as well.  No one wants to feel displaced or useless, and the shame that infidelity brings is enough for many to try to overlook what is going on.  But this approach not only fails to address the problem, but it can also lead to further issues down the road.   Knowing what to do if your husband is cheating is almost as important as finding out the truth.  There are certain things to avoid in this situation, and saying the wrong things can be devastating.