Just be aware bipolar and BPD (borderline personality disorder) are two COMPLETELY different things.

Also - when trying to diagnose a WAS - try to ascertain what they were like BEFORE their crisis. Somemay look like they have a diagnosis during their crisis but were normal before nd will be normal after. Others, like my ex, displayed signs of narcissism and mild bipolar from the very beginning of the relationship that I just overlooked or didn't recognize.