Narrator and point of view

The short story “That Same Sea” by Adrian Markle is told by a first-person narrator who is also one of the main characters. 

The narrator’s perspective is subjective. He is very focused on himself and not particularly observant and insightful when it comes to the woman. This means that a lot of ideas in the text are implicit. For instance, there is an underlying conflict between the couple, which we can guess from the woman’s satisfaction at being the insider, while her partner is the outsider, for once: 

‘Because they’re incomers.’
‘Like me?’
‘Like you.’ She winked.
‘You’re enjoying this.’
‘I am. I’ve had years of you teasing me about not knowing this or that about the city, not knowing the best route on the tube. Now it’s your turn to be a littl...