Hermione bit back the urge to say something about brains versus brawn even though the fact that they came from two entirely different places on most things was the glue that actually held them together. Instead she went for another angle. "I can alway empty Harry's comb and make sure I have a store of polyjuice for those times when you rather talk to him."
While the statement was said in a joking manner, there was a bit of truth to it. Harry's being an auror with Ron allowed him to understand more of this kind of stuff that she did. Not sure what exactly she ought to say about the suggestion that he take a break from the office she just asked, "What will you do with your time then?"