Chapter 14 GF, weird?

[lennyb2002]

No: HPFGUIDX 60262

Chap. 14 ends with a bizare paragraph for a bizare chapter: 
 

"He heard Ron come up into the dormitory a short while later, but did 
not speak to him. For a long time, Harry lay staring up at the dark 
canopy of his bed. The dormitory was completely silent, and, had he 
been less preoccupied, Harry would have realized that the absence of 
Neville's usual snores meant that he was not the only one lying 
awake."

 

So, does the unknown narrator often highlight something Harry is 
oblivious to? Is the narrator sympathizing for Neville, or perhaps 
suggesting that Harry is missing an important clue? 

Thanks
lennyb