Readers have interpreted this piece in their own way and as a writer, I believe the moment you explain a story, its potential of drawing a dozen more interpretations are lost. Many readers sympathized with the protagonist believing the prediction will be true. Poor me, they thought (since it is first person narration) While the plot is built on any average mother?s hopes and fears, the core is the protagonist?s characterization. There are several paragraphs in the story that hints at the protagonist?s pathetic sense of commitment and flighty nature. So the possibility of Kaku?s prediction that they will stay separate does not mean she will be abandoned by her man but in fact she will be forsaking him, for another man/ interest perhaps. And this only Kaku knew!
My opinion about modern day love and marriage has nothing to do with the story.