@Eun he from my understanding it's because Eizer fears that once Victor gets a hold of the secret of Serenity he will be able to destroy Serena, her empire and Eizer himself. So the divorce is meant to distract or rather drive Victor's attention away from Serena and her empire.
Also Eizer made a promise to Serena's grandmother that once things are better (serena learns to manage the empire)he will divorce her.....
Also Eizer made a promise to Serena's grandmother that once things are better (serena learns to manage the empire)he will divorce her.....