“…High comorbidity of symptom disorders may also indicate more severe personality pathology (Zanarini, Frankenburg, Hennen, et al., ; Zimmerman et al ., ).Patients with BPD can be extensive users of health services (Bode, Vogel, Walker, & Kroger, ; Frankenburg & Zanarini, ). However, health service reports also include poor compliance, treatment drop‐out, and repeated experiences of treatment failures (Barnicot, Katsakou, Marougka, & Priebe, ; Kvarstein & Karterud, ; Kvarstein, Karterud, & Pedersen, ; Kvarstein, Nordviste, Dragland, & Wilberg, ). Such treatment irregularity is likely to be linked to core BPD pathology (Hummelen, Wilberg, & Karterud, ).…”