Has Snape's Worst Memory been explained by JKR?

[kimberleyelizabeth]

No: HPFGUIDX 180217

Hi

Snape's Worst Memory didn't really play out in the movie, no.  B4 DH, 
it always puzzled me why this was called Snape's Worst Memory.  It 
wasn't a big enough deal, IMHO, to jusify the title.  Also it was the 
only memory Harry had seen that didn't get played out in it's entirity 
(Spl).  So, I always suspected there was more to it than what Harry had 
seen. 

This was the memory that caused his friendship with Lily to end.  The 
straw that broke the camel's back so to speak.  

Kimberley