Lucius looked at his wife, rather surprised that this was the point she decided to chime in. Asking such an open-ended question, like if he wanted to talk to them was not going to get them anywhere, but he appreciated her voice in the mix supporting him.
"Have they changed?" Lucius asked, trying to back her up, in turn. "I thought dreaming of Harry Potter was happening every night."
Of course, he understood that what Harry Potter was doing in the dream may not be the same every night, but it seemed, to him, that just Harry Potter's presence made it the same. But clearly, Draco felt differently about it. And maybe that was enough to bring forth conversation.