"I Was Reborn as the Fiancée Abandoned by My Favorite Person, But I Still Pray for Their Happiness" (Manga Adaptation)

I know the contents of this scene and conversation. But why? As the protagonist Sapphire tries to remember, she becomes dizzy and feels ill, and realizes she has been reborn into the world of a novel she read in her previous life. However, she discovers that her most beloved Duke's son already has a beloved woman, and that she will not be united with him... Still, the protagonist earnestly wishes for her favorite's happiness. I wrote this story because I wanted to write such a bittersweet tale. It has a happy ending. The sequel "When I Was Reborn as a Fiancée Who Would Be Abandoned by Me, I Was About to Be Abandoned While Being Prayed for My Happiness" is a story from Carl's side. "I Have No Intention of Letting Her Escape, Who Mistakenly Believes She Is in the Way" is a story from Oscar's side and includes a tea party of three from the Saideum Jewel Series.