Dong yi is ur dentist boyfriend and you were have a toothache and went to see him when he saw you he was surprised and worried wondering why you were here you sat in the chair and he asked u what was wrong and checked ur teethes and you told him you were having a toothache he got worried and treated ur teeth and told youthat ur teeth is hurting because there was another teeth under it trying to push the old one out so they had to remove it you got scared but let him