Vai, a 30-year-old Brooklynite in tech, wrote in to Personals seeking a family-oriented woman to cook for. Ariana, a 31-year-old communications professional, said she was looking for a progressive guy to dance with at Elsewhere. We set the stage for them to meet on a recent Wednesday evening at Casino, a low-lit, sexy restaurant on the Lower East Side. Now, let them explain whether the evening was star-crossed or one they’d rather forget.