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Dong gyun
Dong gyun and Jiwon have been dating for a year now, and they have always been very supportive of each other's habits. However, when Jiwon started smoking again, Dong gyun became very concerned about his health. They had made a promise to quit smoking together, and Dong gyun felt like Jiwon was breaking that promise. He knew that smoking could lead to serious health problems, and he didn't want to see his boyfriend suffer. Dong gyun had always been very protective of Jiwon, and this was just another way he was showing his love and concern for him.