Once in a Lifetime

I would like to know more about the context of this story.  Why is Hema expressing all of this after what seems to be years apart.  Is she telling this directly to Kaushik or is she simply reminiscing to herself?  If she is talking to Kaushik, what has caused her to be so open?   Kuashik never responds to anything Hema says, which sets a tense mood over the story.  My guess is that Hema and Kaushik ran into each other, much later in life and agreed to meet for dinner.  Perhaps Kaushik was rude, or the two became inimate, which caused Hema to spill all of her memories.  This story feels almost as if it is a rant at first, and then turns into a fond memory.  I would like to know what happens next; whether they become friends or lovers.