@?????? No one has ever treated cheating as something good. If you actually had any reading comprehension, you would understand that it's being used as an insult. This means it is seen as something bad. Some of the individuals are fantasizing about having lovers, because this is in a time period where marriage does not require love. During this time period political marriage is common, so many men and women had lovers. This is part of the reason the title is literally "marriage of convenience." I'm not saying you can't dislike the story, but claiming that they're treating cheating as no big deal is just wrong. It has historical backing and really isn't that important when you think about the horrendous things people did during this time period. Also they've barely ever even mentioned cheating, because no one has cheated yet. It's absurd to make an assumption over the literal 5 panels that even mention cheating.