This article examines the process of marital disaffection to determine if there is a pattern of sequential stages in this process. A three-phase model was developed from results of in-depth interviews with 49 highly disaffected spouses. The results indicate that to reverse the process of disaffection marital therapy must involve different goals and interventions during each phase of disaffection. The romantic bliss of a new love rarely survives the travails of married life. Nevertheless, most couples expect to maintain the love and affection for many years and love may be a crucial element for stability of the marriage. The loss of love is given as a major reason for marital dissolution-more so than ever before in history (Albrecht, Bahr, & Goodman, 1983; Bloom & Hodges, 1981; Kelly, 1982). Intimacy and love were identified by Kingsbury and Minda (1988) as the best indicator of whether couples plan to continue or terminate their relationships. These affective-type variables were more important than factors such as exchange of resources, conflict tactics, and self-disclosure. As financial, social, and legal impairments to divorce in the Western world weaken (Trost, 1986), more emphasis is placed on the emotional bond as a motive for staying together. Emotional bonds play a central role in marital relations; therefore, it is important to understand the factors which contribute to their growth or demise. In this article the deterioration of emotional attachment in marriage (what is referred to as marital disaffection) is examined. Marital disaffection is the gradual loss of an emotional attachment, a decline in caring about the partner, an emotional estrangement, and an increasing sense of apathy and indifference. By disaffection is meant the replacement of positive affect with neutral affect. In order for disaffection to occur, it is assumed that some positive feelings existed in the beginning of the relationship. There are many other motives-dependence, co-dependency, financial gain, power, social obligations, cultural expectations, extended family-to account for coupling and for remaining in relationships (cf. Lederer & Jackson, 1968). Most spouses would argue that some positive feelings (such as romance, love, security, or caring) did exist in the beginning of their relationship. Disaffection does not necessarily lead to marital dissolution. However, thoughts of separation or divorce become more frequent among disaffected individuals. The experience of disaffection is usually not mutual-typically it occurs in only one partner, or in one partner much more than the other. Disaffection can often result in marriages that have been referred to as devitalized (Cuber & Harroff, 1965) or empty shell (Goode, 1964). Disaffection provides a barometer of the emotional status of the couple. Assessing the level of disaffection is a central issue in marital therapy. Information about the level of disaffection provides clues about spouses' motivation to work on the marriage and the extent to which the marital therapist must rebuild emotional ties. Does disaffection follow some predictable course or pattern that can