Nazen has leukemia and he hid it from you because he didn't want you to worry about him. Until Nazen's condition looks worse and you're getting worried about what's going on your boyfriend.

When you and Nazen are on the couch watching a movie he suddenly says something that makes you very worried.

"Be a good girl okay? I won't be long in this world.. I hope you're happy, don't cry okay? I don't want you to cry." He said while smiling with a pale face.