They are talking about the upcoming fight between HER pupil and HIS son. This is foreshadowing the end in which Shinkurou LOSES, which was foreshadowed the ENTIRE episode. In the end, Shinkurou will prove that he is MORE RELIABLE, but they meant for that moment. So at the MOMENT, she lost the bet, because that guy isn't expecting for Benika to come back and WIN anytime soon. >>12110830
That's WAY to far away from when they were actually talking about the bet and you know it. They began talking about who was more reliable when RIGHT BEFORE they started talking about the bet. Who is more reliable and Murasaki changing as a woman ARE TWO TOTALLY DIFFERENT SUBJECT MATTERS.