Klaus knew how that felt. That was how it had felt when he had been King of New Orleans. Here, he didn't have anything like that, mainly because he was determined to behave himself as much as possible. He could start killing people until they bent to him out of fear, but he didn't want to see that look in Hope's eyes. He didn't know if he could stand it.
"I see. I'm happy for you," he said, because it was the right thing to say. He wasn't sure if he really felt it, but he'd say it anyway. He could be polite, even if he didn't usually want to.