Blaise was annoyed. Because even after all his efforts, in the end he was still Slytherin, he was still from a dark family, he was still a suspect. He had went along with no panic, with no struggle. He went along with the brash arrogance of someone who was confidently innocent. (Even though he knew it didn’t matter how innocent you were. In that case, there was no point to the struggle, either.) He had no bad blood for the people who had captured him and his friends. These aurors were people he knew. People he was friends with, who he drank with - who he greeted along the corridors and asked about their families. Still, here they were. It stung, but it was their jobs. There was nothing they nor Blaise could do. They were just following orders.
So, Blaise, treated the thing with entirely prepared indifference, as he always did - remaining pleasant, smiley, if a bit tired, exhausted, irritated from all the previous happenings of the night. He didn’t snap, as much as he wanted to. He didn’t repeat, “I want a solicitor,” over and over again, as much as he really wanted to. He was cooperative, civil, and upon being returned to the table, told that he would have to be questioned again later, he resisted the irritated scowl that was only one twitch away. He nodded, sat down, and crossed his arms. He looked at the person beside him.