noted volatile couples are usually able to use their positive interactions to repair negative exchanges, but expressed concern that some negative interactions may be too hurtful to be repaired; if this occurs, volatile couples also run the risk of deteriorating into a nonregulated hostile type of relationship. The final type of regulated couple Gottman described consists of validating couples. These couples engage in conflict having a calm undercurrent. During conflicts, partners validate each other's points of view verbally and nonverbally even if they disagree with those viewpoints. There is a sense of mutual engagement with the problem, with both partners feeling like they are on the same side even though they disagree. The primary risks Gottman hypothesized about validating couples were that their relationships may grow to become more of friendships than romances and partners can become increasingly distant. He noted validating couples "may be particularly vulnerable at major life transitions, such as the transition to parenthood" (Gottman, 1994, p. 191). Gottman delineated two types of nonregulated couples, including hostile couples and hostile/detached couples. Hostile couples are characterized by a high degree of conflict engagement and defensiveness. Hostile/detached couples are generally disengaged, but have brief episodes of very negative interactions; partners in these couples demonstrate more contempt and disgust for each other than do hostile couples. Gottman suggested the hostile/detached couple type may represent a further deterioration of the hostile couple type. Gottman has often grouped together the two types of nonregulated couples, as did the authors of a survey based on his conceptions of couple conflict types (Holman & Jarvis, 2003).