Kristen Roupenian’s debut collection, You Know You Want This (Cape, £12.99), comes hotly anticipated. Her short story, ‘Cat Person’, went viral when the New Yorker printed it in December 2017, becoming the second most read article published by the magazine that year. Told in an apparently simple, confessional voice, it recounts 20-year-old Margot’s courtship with 34-year-old Robert, beginning when she flirts while selling him sweets at an art-house cinema, building via text messages, culminating in a night of terrible (for Margot) sex from which she can’t quite be bothered to extricate herself, and continuing in the nasty afterlife of Robert’s...