"You do realize just how suspicious that sounds, don't you?" Harry asks. Truthfully, he isn't certain it's suspicious so much as him really wanting to know who it is. Harry admits to himself that it might be the second one. Jade seems to know an awful lot about everything, anyway, and it doesn't make sense that she would mention but say that it doesn't matter who it is.

To him, anyway, that means she doesn't want him to know.

"I'd like to know who it is." There. That'll move things along.