I'm not sure I understand Shannon's end game here. It's public record that David was arrested and plead guilty for battery or something similar. It would make more sense to admit it, say it was a dark time (or not as serious as the charges imply), and that they've worked through it. I get that she wants to keep it off the show, but you have to know that EVERYTHING is going to come out when you're putting your life out there on national television.