[1] Lecomte made her literary debut in 1896, with the novel Amitié amoureuse (Love friendship), which was a success.

[1] She signed much of her other works with the signature "L'auteur d'Amitié amoureuse" (author of Love friendship) and also used the pseudonym "Pierre Guérande".

[1] In collaboration with Maurice de Waleffe she was the author of the novel Mater dolorous (Mother of pain) (1901), Maudit soit l'amour (Cursed be love) (1901), and Hésitation sentimentale (Sentimental hesitation) (1901); with Henri Amic she wrote En regardant passer la vie (Watching life go by) (1903), La Joie d'aimer (The Joy of Loving) (1904), Les serments ont des ailes (Oaths have wings) (1904), and Jours passés (Days gone by) (1908); with Jean de Fossendal, she was the author of L'amour guette (Love is lurking) (1908); and with B. Moyra of La Route interrompue (The Interrupted Road), a novel translated from English.

However, Troyat writes, "Maupassant would take such a place in her life that, much later, she would evoke their meeting in a novel published anonymously, Amitié amoureuse (Love friendship) and in a work of memories, En regarde passer la vi (Watching life go by).

In the 1870s, she married André Lecomte du Noüy [fr], an architect in the service of the Romanian government and restorer of the church of Curtea de Argeș.