Background: love trauma syndromes cause major emotional problems and it is necessary for experts to investigate this issue comprehensively.Aim: According to the research, this study sought to investigate the role of emotional pain variables, experiential avoidance, and forgiveness in predicting the occurrence of love trauma syndromes.Method: This research is a descriptive-post event study using the Pearson correlation and regression methods. For this purpose, first, questionnaires on love trauma syndrome (1999), Heartland forgiveness scale (2005), mental pain (2003), and acceptance and action questionnaire (2004) were prepared for women aged 18 to 35 years in Isfahan who experienced love trauma in the last six months at most. The targeted form was sent, and 195 questionnaires were included in the analysis. People's scores in the love trauma syndrome questionnaire were considered as criteria variables and scores in mental pain, experiential avoidance, and forgiveness were considered variables predicting group membership. The results were analyzed by the diagnostic analysis method.Result: The results indicate a significant diagnostic function that explains the variance of the groups formed (P> 0.05). The experiential avoidance scale (r=-0.77), the mental pain scale (r=-0.75), and the forgiveness scale finally have the highest predictive value in differentiating the two groups from each other (r=+0.44).Conclusion: The results showed that people with the experience of love trauma syndrome in the scale of experiential avoidance and mental pain (loss of control, irreversibility, emotional overcrowding, self-estrangement, freezing, confusion, narcissistic injury, and social distance) and forgiveness variable (forgiveness for others and forgiveness for situations) can be distinguished without it. These results can be useful for mental health professionals who are somehow related to youth issues.