She is stunningly beautiful, but most importantly to combine with that, a genuine calculated 100% sociopath. Maybe he is too (or NPD), or a codependent/anxiously attached man under her spell. I don't see her as goals whatsoever, because due to her lack of ability to love entirely (she is after maximum personal gain, usually of a financial nature, as a genuine sociopath).

Their marriage/relationship is eventually doomed to fail. I believe in playing to win (and sitting the game out in the meantime, if it isn't possible to win). However, I don't believe in being an abuser or a sociopath. I have no doubt she abuses him emotionally and narcissistically.