This chapter discusses the importance of studying love and hate in intimate relationships, focusing on how unconventional aspects of intimate relationships: Non-monogamy, female orgasm, sadism, and hate are often overlooked and undervalued in the social sciences. Within this volume, several researchers from a variety of disciplines within psychology use empirical and theoretical evidence to demonstrate the importance of these underrepresented aspects of intimate relationships. By shedding more light on how love and hate can work in intimate relationships given the changes in technology, values, and time, it is hoped that satisfaction in intimate relationships and understanding of relationship processes will increase.