What attitudes and values emerge from the conversation in Hemingway's Hills Like White Elephants?

I think
that what makes this story so wonderful is its ambiguity.  I think that it is quite deliberate
that Hemingway describes a story with so much technical precision, yet its overall understanding
is mysteriously obscure.  We understand that there is a discussion about a procedure that
appears to be an abortion.  It is at this point where I think that we begin to see the values
and attitudes of both characters.  This crisis brings out where both of them are, but also
leaves room for wondering about...