a waltz for a night (слэш)

Victor Nikiforov is coming back from an extended trip to London, where he spent a month doing research for his next novel; Katsuki Yuuri is going to Belgium, where he’s finally gotten his dream job at a famous dance company. They meet at Gare du Nord, when one waits and the other is about to leave.
Throughout a day and night and all over Paris, they share pieces of themselves, whispered confessions and stolen kisses. But as morning dawns again, they must make a difficult choice.