Aims: This study aimed to evaluate the effects of an online EMDR couple protocol in reducing trauma-related symptoms, improving conflict resolution strategies, and increasing willingness to forgive among couples with a history of attachment trauma. Subgroup analysis was carried out based on gender, partner roles (offending and injured), and types of conflict (single incident and complex). A secondary aim was to determine if gains were sustained at a one-month follow-up.

Methods: Participants were 34 individuals (17 couples) presenting with attachment trauma, with a subjective unit of disturbance score over 5. Couples received a two-phase online EMDR intervention comprising individual and conjoint sessions. Pre-intervention, post-intervention, and 1-month follow-up measures of post-traumatic stress (Impact of Events Scale), conflict behaviours (Romantic Partner Conflict Scale), and offence-specific forgiveness (Marriage Offence–Specific Forgiveness Scale) were collected. Repeated measures ANOVAs were used to analyse changes over time, with follow-up t-tests examining gender and role differences.

Results: Participants demonstrated significant reductions in intrusion, avoidance, hyperarousal, and overall trauma impact, with improvements largely maintained at 1-month follow-up. Conflict styles, notably compromise and submission, showed statistically significant positive shifts. Forgiveness scores improved through reductions in resentment avoidance. No significant gender, partner role, or type of conflict differences emerged, indicating uniform benefits across subgroups.

Conclusion: Findings suggest that an online EMDR couple protocol can effectively alleviate trauma-related distress, enhance constructive conflict resolution, and facilitate forgiveness in couples with attachment trauma. EMDR is equally beneficial for both offending and injured partners, as well as complex and single-incident conflicts.

Trial Registration: Trial registered by the Clinical Trial Registry of India (CTRI). Registration Number: CTRI/2023/07/055625, registered on July 25, 2023. https://ctri.nic.in/Clinicaltrials/showallp.php?mid=87803&EncHid=&userName=CTRI/2023/07/055625“