The point is that happily married couples who remain happy and married throughout a book or show are just not that interesting. Married couples having satisfied sex at regular intervals is boring dramatic material to everyone but the couple themselves. It’s useless for gossip and it’s highly awkward, if not antagonistic and rude, to share with others. 3 For all the reasons above, I’m drawn to the dead bedroom/transgressive affair theme. But I wonder how many readers and watchers understand that it tends to be the exception not the rule