If you are one of those who are dealing with unfaithfulness in their relation then probably you have more questions than answers at this point. It is very difficult to figure that the one who claims to love you can make out so much pain in your life. You are left angry, hurt, confused and wondering can your relation survive disloyalty. There are various reasons that can cause this type of situation however, some of the reasons cited as the cause of unfaithfulness of partners in a relationship include: