Eventually one couple wins, as voted by the public, they are the ones who get the most financial and media opportunity after the show.
Dani should surely have enough savvy to know, that people will vote for her if she and Jack continue to have a happy, positive time on the show
It wouldn't surprise me if that conversation has been had.
It occurred to me how little we see compared to what actually goes on.
We got two episodes of the same night once and we are at least 2 days behind by the looks of it, we basically get a tiny percentage of what actually happens and they clearly edit or even script storylines.