A couple of days ago, when Nicole saw with her own eyes that another woman had taken over her friend's body, she could not come to her senses to react adequately. Her first thought was that this must be some kind of joke or prank that Dexter decided to pull on her and Urum.
After they fell into the trap of vampires, they passed quite a few tests of endurance, physical and psychological, to prove that they are not enemies. It was quite difficult, considering the moment of their meeting and the injury of Raphael's sister.
No matter how hard Nicole tried to convince her that it was all a mistake, Dexter was beside himself with rage, his eyes seemed to be obscured by a veil and he refused to listen to her, giving all his thoughts to Amanda and her condition.
It was one of the hardest days of her entire life. She recalled those days with fear and trembling.