A romantic relationship exists whenever the two partners perceive that it does. As perceptions change, so too does the relationship. For example, a couple may consider their relationship “casual dating” but still define it as “romantic” (rather than friendly). Or, a long-term couple may feel more companionate than passionate but still consider themselves “in love.” If two partners’ perceptions of their relationship differ—for example, one person feels romantic and the other does not—they do not have a romantic relationship (Miller & Steinberg, 1975).