Elisabeth didn't say anything else after admitting that she indeed knew what Aria did. She was perfectly content with the current situation. Their relationship will never go back to how it was before, that was a fact. Aria could stay in the house but they would be strangers.
Aria might have guessed it and couldn't bring herself to accept it. At first she didn't want to betray Elisabeth. There was a respectful boundry in their friendship that neither of them crossed. Betrayal was never an option between them.
That was until Alpha Kegan came to her and offered her a spot in the ranks. He put a psychological pressure on her in many ways. He tried to show her how glorious Elisabeth's life was going to be after she finishes her training, how she might leave Wolus and even stay at the Lycan
