Rodolphus was about to respond to Lucius telling him to help Regulus back when he heard his brother speak up. He did not crack a smile but he was most assuredly smiling on the inside. He of course would step in and place himself between his friend and his brother should things go that way again.
Once again Rodolphus was about to speak and he was cut off this time by a pissed Regulus. With a concerned look, that while looking real, actually was quite fake, he spoke to his brother. "We really should look after him. He might end up hurting himself" Of course he was speaking of the younger Black as he stumbled albeit proudly toward the castle. " I think it would be best of you went after him little brother. After all you are his best friend" He added as if to mentally shove Rabastan away from the pitch.