Infidelity or extramarital affairs have been extensively studied over the past two decades.
Basically, when it comes to infidelity, two related explanations have been given.
The first explanation is probably the most well known: Spouses cheat because of problems in their relationship. Something is missing, passion has faded, partners feel lonely, a partner finds someone who treats them better or who appreciates them more than their current spouse, and so on.
Simply stated, people claim that they are not happy in their relationship, so they look for love and affection elsewhere.
