Infidlity

I cant seem to understand why people cheat and how people can make excuses for doing because in my opinion there isnt a reasons or excuse for why someone would cheat on their partner. The most common excuse you here for someone cheating is 'I was drunk' and think they can get away with it without hurting anyone, when actually it does. There must be a reason behind someone wanting or even being to bring themself to cheat on their partner which can ony show if you are able to hurt someone in this way do you really care for them as much as you think.

A lot of people who have affairs normally find it 'exciting' as theres always that feeling knowing they could get caught. But then after they have the guilt of knowing that if their partner finds out how hurt they are going to be.