I've taken multiple lovers and all told me i have borderline personality disorder?

Are they therapists?: While bpd is very real, it has also become a catch-all term for people with volatile personalities. Tv shows and other popular media throw the label around. Only a trained professional is qualified to make this diagnosis, and it's really only useful if it leads to treatment. Wikipedia has a rather good entry on bpd.

Could be: I d check it out with a professional with training & experience in the field.

Borderline: Best to have an assessment by a mental health professional if your symptoms are causing distress or interfere with your daily functioning.