Couples that don't throw tantrums like bratty children. A major turn off for me. Like I said, it makes no difference how much sex they have or anything physical like that. Maya and Stepan are boring in the sex department but are still my favorite couple. And even with Sasha and Masha, they're the most exhilarating couple in terms of sex, but if they turn into another Suzan and Hector or Carla and Mario, I'd want them to leave just as fast.