Just going on what I read on how it's an addiction and they seem not to be able to control it because the affair is like a drug.
That's what they say and from my ex's actions, I believe it. I remember the day when the OM's wife called me and spilled the beans and sent all the pictures and all. I confronted the ex and she just sat on the be for a solid hour just staring at the wall.
There are moments in this life when you are so confident in the rightness of your actions, that not even for a second do you consider the option that you might be wrong.