Here’s an informative post about the scene:
Furthermore, the production quality often associated with Dior’s high-end psychosexual features amplifies these themes. The use of shadow, tight framing, and dissonant soundtracks mirrors the internal psychological state of the characters. Dior thrives in this atmospheric pressure. She is an actress who understands that in a psychosexual drama, the silence between lines of dialogue is just as important as the physical action. Her ability to convey boredom, contempt, or frantic need creates a three-dimensional character whose romantic struggles feel consequential, even within the constraints of the medium. Deeper - Gianna Dior - Psychosexual Part 5