"I just.. don't want to lose you." She hadn't said that before because she'd been too concerned with keeping appearances. With her Merlyn too, she didn't want to give him too much--didn't want to make herself too vulnerable--by admitting she loved him. "I know I would have lost you eventually, but.. Please don't leave." Begging a boy wizard. Clearly her world had crashed around her ankles and all that was left was madness.