An Eternal Vow to Twilight Sparkle

[Single heroine + marriage and childbirth + love-based storyline] My name is Chen Yao, a unicorn, Princess Celestia's student, and Twilight Sparkle's childhood sweetheart. I thought we would learn and grow together forever, until she became an alicorn and had eternal life. That day, at the celebration party, I saw a flash of piercing sadness for the future separation in her eyes when she looked at her friends. At that moment, I made a vow. Books say friendship is magic. But if friendship is destined to end in endless loneliness, then the magic itself is the greatest curse. So, I have to rewrite all this with my own hands. I want to dive into forbidden areas and delve into the magic of life and time that no one dares to touch. Even if I am an enemy to the laws of the entire world, even if I am regarded as a heretic, I will dedicate a true "eternity" to her and everything she cherishes. Twilight, your smile will be guarded by me until the end of time.