This chapter delves into the intricacies of liking, attraction, online dating, successful marriage and the roots of divorce to better explicate the rich, but complex development and maintenance of romantic relationships. More specifically, the chapter explores familiarity, similarity, gender, short and long-term dating intentions, trustworthiness, positive partner attraction, dominance, attachment security and other factors that pertain to attraction and liking. The chapter introduces The Cues Filtered out Theory, Social Presence Theory and Media Richness Theory, and delineates the benefits and limitations of online dating as it relates to computer-mediated communication. The chapter delineates the importance of similarity, communication and equity for successful relationships and the detriments of dissatisfaction and conflicts in unsuccessful relationships. Finally, the chapter shows how the Prepare/Enrich Program offers valuable advice for resolving conflicts, recognizing partner strengths, and creating a financially stable and productive life with one's partner.