My fiancé's childhood friend keeps tagging along on dates with my fiancé and me. At first, I didn't want this to happen, but...

Whenever I go on a date with my fiancé, their childhood friend always tags along. No matter how much I ask them to stop, my fiancé just brushes off my requests, as does their childhood friend. One day, the childhood friend gives me a smile filled with hostility, and I can't take it anymore. As a result, emotions I never expected surge up within me... ※On August 9, 2023, this work ranked 1st in the daily rankings of the Human Drama (Literary) category! Thank you all so much!! I've corrected the main text. I plan to revise the bonus chapters in the near future as well (2025.5/30) ※The bonus chapters are now complete. I've provided links at the bottom, so please feel free to check them out if you'd like.