Their fake thing got real but he ended up losing her

Waking from a crash, Elena catches her boyfriend Richard cheating. She fakes amnesia to play him. To keep cheating, Richard pushes her to his powerful rival, Alexander, claiming Alexander is her real boyfriend. Alexander plays along, giving her the ultimate devotion. As their fake love turns real, Richard begs for her back in tears. But it's too late—she is gone forever, cherished by a man who is actually clean and loyal.