If he missteps, he could easily ruin both of their lives forever. What follows Gurov's decision is both simple and remarkable. They both admit that they are in love. She promises to meet him discreetly in Moscow. Chekhov, however, presents it in remarkably neutral terms.
Conventional morality plays no significant part in the story's conclusions.
No one is censured. The couple seem, in fact, to enjoy the author's qualified sympathy. He simply portrays the couple's situation. Perhaps even more interesting is his ultimate characterization of Gurov. He craves intimacy, though he has mistaken sexual conquest for it.