People sometimes change once the wedding bells stop ringing. Both Fatima and Klaus seem to have done so in this story.
You might benefit from reading some of our writing tips. For example, we recommend the article on story arcs. A story arc is how you build tension in a story and then resolve it in the end. And in the process, typically the main character must overcome something or achieve a goal. Without those elements, stories seem incomplete.
Good luck and keep writing, @dympha.lady.