Context: Yami made Yugi promise that he would at least not cry in front of Yami when if he left . They each knew that these two actions would make it impossible for Yami to leave and their hearts were already breaking enough . Yami tried to make Yugi promise that if he ever found someone that made him happy again , then Yugi was to take that chance and move on with his life while always keeping a special place in his heart for his pharaoh . He tried to make Yugi agree to this , but Yugi just told him profusely that nothing like that would ever happen .

Question: Why were the two so sad ?
Options:
0. None of the above choices .
1. No one could leave .
2. Yugi had to leave .
3. Yugi could not leave .
Answer: 2