A good and long lasting relationship is built on solid discipline and when such is missing, there is bound to be disunity.
Lots of families have crashed because; they fail to discover, what was lacking in their relationship. Cheating in a relationship is also part of indiscipline, why should you fleet with someone else, when you are still in a relationship. Stealing, cheating and greed are also part of indiscipline.
The two pillars that maintain discipline in a family are both the mother and father. For unmarried it is both partners that work hard to maintain discipline. If one of the pillars is undisciplined, it would affect the future of their children.
http://healthful.com.ng/how-indiscipline-ruins-family-relationship/

Help your wife not cheat on you.

thats true