You're damn straight! You don't deserve this. "Then he gave me a VERY graphic outline of what he planned to do with his mistress all weekend"...that's a mean bastard to do something like that. He's used you; he's played off of your emotions for his financial benefit. "They used emotional warfare to kick me when I was already destroyed to avoid D's transgressions from being public record in a court of law"...yep, they did.
Hard consequences are the only thing that will speak to him.
"Always go straight forward, and if you meet the devil, cut him in two and go between the pieces." - William Sturgis, clipper ship captain, 1830's.