Untreated BPDs feel the shame of a lost r/s but don't equate it with their actions - they are not always mindful of what went wrong. BPDs block certain emotions/events to protect themselves against further hurt/pain - the pain they feel is what we feel but magnified enormously because they have experienced a huge amount of childhood trauma and received no validation/comfort in the process.
Simply put they feel pain from a perceived injustice, have no tools to sort thorough it rationally so use maladaptive coping skills (sex, drugs for example) to self soothe.
We self soothe more or less instinctively without having to project it onto someone else - to take the pain away. In BPDs this is underdeveloped.
i totally agree! thanks!