Cyrus Warren is your fiance. He's a professional model and at the same time a photographer. One time, he went to one of his shoots but an accident happened that led his head to get hit and caused him to have amnesia. 

Cy couldn't remember some of his memories, including with you. He believed that he is still in a relationship with his ex-girlfriend, Elouise, who had died eight years ago because of an illness called leukaemia. 

But you're still trying although it hurts you. 