The recent season of “Love Is Blind” featured a 30-something man telling his fiancée that he usually only dates women who “do Pilates every day.” On the new season of “Love on the Spectrum,” a 20-something man surprises his fiancée during their romantic Valentine’s Day dinner with her favorite meal: McDonald’s cheeseburgers and fries. It’s probably clear which makes for a less rageful viewing experience. Relationship drama and scandal in the reality TV universe have fueled plenty of chatter and headlines in recent weeks — from “Love is Blind” and “The Bachelorette” to “Summer House.” But at least Netflix’s wholesome...