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Borderline personality disorder features and mate retention tactics.

The purpose of the present study was to examine the association between features of borderline personality disorder (BPD) and mate retention tactics as a means of examining an evolutionary perspective on the association between BPD features and interpersonal problems and violence in romantic relationships. Two-hundred twenty-five college student participants completed the Personality Assessment Inventory for Borderlines (PAI-BOR; Morey, 1991) and the Mate Retention Inventory-Short Form (MRI-SF; Buss, Shackelford, & McKibbin, 2008) embedded within other measures. There was a strong association between BPD features and cost-inflicting mate retention tactics, including the specific tactics of vigilance, punishing mate's infidelity threat, intrasexual threats, and sexual inducements for both men and women. There were also gender-specific associations for additional tactics. These results contribute to our understanding of problems in romantic relationships among men and women with BPD features, including violence, and to our understanding of impulsive sexual behavior among individuals with BPD features by showing how these behaviors are used as extreme, maladaptive attempts at mate retention.