Personal motive

She was still slumped on the couch, thinking of the man that just walked away from her. He might have said he was not leaving her. From his actions, there was a warning in the way he left.

She would not count that he could wait for her anymore. She saw in his eyes that he had enough of her plots and schemes. He was ready to move on. But she was not.

"Pull yourself together. You can do this." Cassie quickly moved to the bathroom, fixing herself. 

It was the only way she could accomplish her goal. It was necessary to achieve her dream. Cassie knew that any time Nick would come knocking on her door. She did now want him to see her messy state. 

She could not allow him to suspect that anything was amiss. She had to continue her charade to continue to earn his trust. He was the only key she had to get close enough to destroy Ethan and Dani.