I’m not really mad for DB. He made his bed. But VB was really clear how badly it affected her mentally. RL was their PA. She sold horrible details about private convos she had with VB, really intimate stuff. She knew their kids and his wife and shagged him anyway. And then made a mint selling her story to the papers. What a bitch.
But the person who left you vulnerable to all this and let that person in to publicly humiliate you is your own husband, whom you're still with. Furthermore, having seen the profoundly negative effect the entire saga had on your mental health close up, the distress it caused you hasn't been enough to prevent him (allegedly) cheating again many times and risking causing you further public humiliation. Payoffs are risky business, stuff could still come out years from now. Look at the Smiths!
RL may be a bitch, but one thing about her she didn't accept a payoff. Wealthy women who agree to their husbands pumping and dumping women and paying them off like prostitutes in order to preserve and sell a fantasy marriage for social and financial benefits (happy family media spreads, documentaries, reputation) are also milking it by-proxy and benefitting indirectly from another woman's humiliation and/or disgrace.
Don't get me wrong, I have no sympathy for women who knowingly have affairs with married men, but I can acknowledge that their mental health is affected too. Which is probably why RL is pissed they have brought this up again in a way in which David takes zero responsibility. Again.