“…Rosch’s work revolutionized the way that social scientists think about and study concepts, particularly those that have defied classical definition in the past. By now, there is considerable evidence that many concepts, including many relationship-relevant concepts, are organized as prototypes (e.g., emotion (Fehr & Russell, 1984; Shaver, Schwartz, Kirson, & O’Connor, 1987), love (Aron & Westbay, 1996; Fehr, 1988; Fehr & Russell, 1991; Fitness & Fletcher, 1993), commitment (Fehr, 1988), anger (Fehr & Baldwin, 1996; Russell & Fehr, 1994), jealousy (Fitness & Fletcher, 1993; Sharpsteen, 1993); forgiveness (Friesen & Fletcher, 2007; Kearns & Fincham, 2004), and respect (Frei & Shaver, 2002)).…”