This is kind of my practice niche, and it's very very common to see these types whenever you have drawn out litigation in family court. I'm pretty confident in saying that if whenever there's protracted litigation in family court, at least one of the parties is personality disordered.
These types of personalities thrive on the conflict, and indeed they do use the court system to inflict additional abuse. Unfortunately they are often successful because civil courts, and family courts in particular, are not set up to expose these kinds of abuses, and there's really no way to stop someone from litigating if they are determined to keep the controversies going.
These people always make horrible witnesses, exactly like Jodi, and they usually try everything to avoid actually taking the stand and going through with a hearing or trial. Putting them on the stand is the very best way to demonstrate to the judge what kind of person we're dealing with - otherwise it is very, very difficult to expose this kind of personality -- they always have the advantage in litigation because they are not playing by the rules, but the other party is.
