When a married person cheats, the "other person" is usually the one blamed the most for being involved, rather than the cheating married individual. But in all honesty, why should the "other person" be responsible for maintaining somebody else's marriage? Its true that its not the best thing to do but what does the survival of your marriage have anything to do with him or her? It really has no bearing on them. The cheating married individual should take responsibly over their own marriage rather than handling it over to someone else. Truth of the matter is: we are all only out for ourselves in this world. And this really should not come as a surprise to adults in general.