A small smile crept across Richard's face. "Your welcome." he said softly. It might not be much but it made him feel better to be able to help her in some way, and to have her actually except it. Plus he felt he was helping to protect her. Without realizing it though he had allowed his guard to drop and his mind and body to be distracted. 

She couldn't quite explain it but Rin felt Marcus change into the person he usually is, the loving and gentle man he is to her. Immediately it gave her comfort. "I usually don't worry about you like this when your out on missions. Maybe it's because I'm here with you or because of Cas. Either way I'm just worried about you." she explained softly.