Charlie had heard the door to the roof close after she started to head downstairs, changing her direction to find the red bandanaed turtle in hopes of at least talking to him or finding another way to calm him down. She arrived in time to see him angrily punching and kicking the air. She figured he was letting off steam imagining he was fighting the Foot, or worse, Leo. 

"Raph? You okay?" She asked, letting him know she was there. She didn't want to anger him further if he eventually saw her, figuring letting him know would avert an accidental attack. "What Leo said back there...I'm sure he didn't mean it. Both of you are upset about this and said things you didn't mean to." She said.