Answer:
The word 'yet' implifies that as the couples are planning to married, Nene concerns that Nnaemeka should inform his father, Okeke about their decision.
One can infer that both Nene and Nnaemeka are equal in their relationship, as portrayed by the author in whole story.
Step-by-step explanation:
'Marriage is a Private Affair' is a short story written by Chinua Achebe. The story concerns about a father and son relationship.
In the beginning of the story, Nene asks Nnaemeka if he has written a letter to his father yet or not. Nene's use of the word 'yet' implifies that Nene wants to involve Nnaemeka's father, Okeke, in their happiness of their planning of marriage. On the one hand, Nene is thinking that Okeke will be happy with the news about their marraige but seldom did she know about he orthodox beliefs of culture and tradition.
This also infers about the equality in relationship shared between the spouse in city compared to village life. In the whole story, the author has portrayed the theme of this difference only.