[ This drama track seems to be a reworked monologue based on Antoinette's various speeches in the manga.   I couldn't find any scene in the manga or anime that used these words in particular. ]

Antoinette:

Fersen! I've finally erased you from my mind after all these years. As the Queen I have no choice. Yet, every time I see your face and hear your voice, my heart can't help pounding wildly. Oh, why? Why can't I say a word? Why can't I even say a single word? My heart is burning with such intense desire. How can I stay calm? I love you, Fersen! Nothing can stop me from loving you now.