Yea, no. She was not being controlled. He's currently too weakened to control someone as powerful as her. He just gained her sympathy because they are in similar situations, and her seeking for comfort in someone else she ends up freeing him...though she actually doesn't really do anything to actively free him even while getting along with him I believe. She just heals his created bird at the very beginning which ends up feeding him power. At that time she didn't know about him and was just healing an injured bird. Her eyes turning blue doesn't mean he is controlling her, it means he is looking through her eyes.