BPD Risky Sexual Behavior and Impulsivity

Borderline Risky Sexual behavior and bpd impulsivity is a central and core part of BPD for many but now all. Impulsivity acted out through risky sexual behavior means partners being cheated on, BPD monkey branching or many with BPD seeking to re-engage sexually with an Ex or more than one Ex. Why do people with BPD cheat (many often) as you are split to devaluation blamed for how the Borderline feels often ghosted or discarded because the Borderline is not consciously aware of why they feel what they feel with all the triggered emotional dysregulation they cannot (untreated) manage or cope with at all?