There's one thing my C told me out of his experience that made perfect sense to me. He says it's very unlikely someone who found true love keep an affair going. Usually they separate right away and are more honest right at the beginning. They don't care about the cost of D, red tape or assets division, they will just pursue it and move on very fast, they don't like to be cake eaters after all it is true love. He also said that people break up and get a D for smaller things than an A if they truly want to end a marriage.
Guess that's why DB works. And even if the marriage ends, the cake eaters will have a bitter flavor in their mouths always.
