"No, you let him do it the second you brought a guest with you in public that you clearly had no control over," Draco replied, not raising his voice. "And if you had chosen a witch who actually respected you, she wouldn't have dared do that without your consent." He looked Iggy up and down, as if judging whether or not Iggy was reckless enough to do that. "And you clearly didn't."
As Draco crossed the large dining hall, he didn't pause as his wife's pleasant voice cut through the tension in the room. While she fidgeted absentmindedly with her robe, Draco kept taking his measured steps towards his brother, closing the distance, until he was able to angrily grab his younger brother by his shirt--swiftly, as if to follow the motion with a painful blow.
Instead, very quietly, he said, "I will let this pass because this is clearly a result of your current raging stupidity. But you are going to figure out, right now, what the hell is making you act like this. And you are going to remember that I let this go, and didn't beat you senseless for making light of what happened with Rodolphus."