If I'm not mistaken, the reason Ford had to pony up so much is cause he was cheating on his wife. If Rush wasn't unfaithful, why should he have to pay big bucks just to keep her in the lifestyle to which his income had gotten her accustomed?
It's the law in Florida.
Cheating, Gambling, Fighting, Drugging or just changed her mind about Rush. I don't think it really matters. She will be entitled to half the wealth he earned since they have been married.