In "Hills Like White Elephants," how do details of setting and physical action contribute to our understanding of the characters?

Hemingway uses the setting as afor the
couple's relationship. What the setting tells us is that, while both parts of the view are part
of the same landscape, the parts are are divided from each other. What the metaphor of the
setting tells us about the characters is that, while they are a couple and metaphorically part
of the same landscape, they are as divided as the landscape. This foreshadows the unwritten
outcome of the debate they are having and of their relationship. It also tells us that one
individual in the couple represents a position that equates to a landscape with no trees and no
shade (but this does not indicate which character this is). It also tells us that the characters
have perspectives and precepts that make them like two sets of train tracks going separate
ways.

On this side there was no shade and no trees and the
station was between two lines of rails in the sun.

Their
physical actions display and reinforce their separateness, athat overrides and belies the words
they might speak. While saying how he only wants Jig to agree to the "operation" if
she wants to, the man goes into the bar alone and has a second Anis (probably without water)
alone and watches the other people being "reasonable" while they await the coming
train. This, of course, implies that the man perceives Jig as unreasonable.

They were all waiting reasonably for the train. He went out through
the bead curtain.

Similarly, when Jig walks to the end of
the station to look at the scene and the Ebro, she is demonstrating her separateness from the
man. So while she says she is being amused, she is really being driven apart from the
man:

'And we could have all this, she said. €˜And we could
have everything and every day we make it more impossible.