This story is told in third person. It is as if, on the whole, the scenes we see are being filmed by a camera. We see the actions going on and hear the dialogue but have to interpret what it all means.
For example, we see that the husband
his wife's pale arm and put the two glasses on her table. After he had gone, she sat looking at the arm.
We can visualize this, especially the wife's eyes lingering on the arm, but it is up to us to figure out what it means. Likewise, we are not told that the husband is upset but are shown that he
sat for a long time with his head in his hands.
However, we are given added information. The journalistic point of view of the story--flat, factual, and detached--reflects the detachment that the woman is feeling from her family and life. Further, if we look at specific words, these reinforce the wife's disengagement. For example, she looks at "the" arm, not "her" arm, after her husband squeezes it, suggesting she is even detached from her own body.
The point of view shows rather than tells us the wife's emotional withdrawal from her family and especially shows how drained she is and unable to nurture. Rather than give us interiority, this perspective gives us concrete details to analyze.