> I then backtracked to redo that conversation with higher Empathy so Zorana could get a sense for if he was lying in that thing he said
At a guess I think you may have failed to complete Krovos's quest before having that conversation again? Or else failed to have the 30 Galactic Relations necessary for Zorana to follow up on what happened there? Zorana will only ask about the subject if she's done the research.
(If you want to know the answer for what happens if you successfully make the Deception/Empathy check after he says there's no such thing - bs pbhefr ur'f ylvat.)