My Ex-Boyfriend Suddenly Turned Black

Dual personality male protagonist × inferior self-esteem female protagonist After three years of dating, her boyfriend's first love, Bai Yueguang, suddenly returned to China. Seeing him and his first love rekindle, Duan Nian was disheartened and decided to break up. But her ex-boyfriend suddenly seemed like a different person. He started clinging to her and wouldn't let go. His personality was uncertain, as if his brain suddenly went bad... Duan Nian: Let go, we have broken up! Lu Xuyan suddenly hugged him: No! No way! Nian Nian, you must have remembered it wrong! After a moment of silence, Lu Xuyan said coldly: Why are you here? Woman, I knew you still wanted to pester me! ? Duan Nian: ... Are you sick? Lu Xuyan (suddenly changing his face): That's mainly because I'm lovesick. Only Nian Nian can cure me! Duan Nian feels that he is in a bad situation now. His good ex-boyfriend suddenly seems to have lost his mind. If he moves around, he can definitely hear the sea... However, when the truth of the past is revealed one by one, it is the knight who heroically guarded his childhood, and his gentle boyfriend who has been with him for three years. How should Duan Nian choose?