When the Norwegian sociologist Erik Grønseth wrote about love, family and sexuality in the 1950s and onwards, they were not obvious topics for a sociologist to cover, even though William Goode published a paper on the theoretical importance of love in 1959. Goode’s point of departure was on love as a potentially disruptive social force and the social mechanisms used to control it. For decades, love and personal relations remained a somewhat awkward question within mainstream sociology, in spite of their importance in feminist theory from the 1970s onwards. Following the works of Giddens (1991, 1993) and Beck and Beck-Gernsheim (1995) from the early 1990s onwards, however, love and personal relations entered mainstream sociology and were placed at the center of grand theories of social change (see also Chapter 2, this volume).