This chapter serves as the conclusion of a volume on the maintenance of relationships, especially romantic relationships. As its author, I sought to reflect on the other chapters in the book, doing some synthesizing, placing the volume’s contents in context, and adding my own views. The chapter unfolds by first discussing what maintenance is and then examining the past, the present, and the future of scholarship on maintenance. The discussion of the past mapped the growth of work on maintenance and reflects on a few comparisons between early and current contributions. The segment on the present identifies a citation count–based who’s who in the area, compares five theoretical perspectives on maintenance, and offers a broad-stroke synthesis of antecedents and consequences of maintenance. The chapter’s final section looks to the future, highlighting what authors in the volume recommend plus identifying four additional directions maintenance researchers might pursue. Overall, the chapter documents that from maintenance scholarship’s modest beginnings nearly 50 years ago, the volume of research, the sophistication of theoretical analyses, and the variety of research paradigms have all substantially advanced. Maintenance has gone from obscurity to being an important topic in good standing as we approach 2020.