PurposeThe purpose of this study is to examine the effect of service failure severity on brand forgiveness and to investigate the moderating effects of interpersonal attachment styles and thinking styles on the service failure severity–brand forgiveness relationship.Design/methodology/approachThe authors used retrospective experience sampling to collect the data and structural equation modeling (AMOS 24) to analyze 570 responses collected via an online survey.FindingsThis study shows that the service failure severity–brand forgiveness relationship is not always negative, as different conditions may amplify or weaken it. Specifically, a secure attachment style and holistic thinking weaken the negative impact of service failure severity on brand forgiveness, whereas an anxious attachment style and analytic thinking negatively amplify the relationship. An avoidance attachment style did not appear to play a role.Practical implicationsThis study should help hotels fine-tune their segmentation, targeting and positioning efforts and may also help in implementing more focused recovery strategies.Originality/valueThis study provides insights into the role of psychological traits in amplifying/reducing the negative impact of service failure severity on brand forgiveness, thus showing the importance of developing the psychological profiles of customers beyond demographic profiling. The emotional and cognitive typologies of consumers are key to understanding the dependence of forgiveness on service failure severity.