The first part of Notre Cœur revolves around the relationship between Mariolle and Mme. de Burne.
Mariolle is deeply drawn to Mme. de Burne, a woman of great intellectual charm who captivates many in high society.
However, she remains emotionally elusive, neither fully accepting nor outright rejecting his affection.
As they explore their connection, Mariolle finds himself caught between love and obsession.
He struggles with her ambiguous responses, feeling both hopeful and tormented by her distance.
External influences and changes in their environment further complicate their dynamic.
Seeking clarity, Mariolle tries to distance himself, yet he remains irresistibly drawn to her.
As his feelings deepen, Mme. de Burne continues to maintain emotional detachment, intensifying the tension.