Simply put? No.

However, if you're routinely "falling inlove" while manic and breaking up when the ride is over?

Well then yes, it would be a type of indirect sub-symptom.

BP is diagnosed by problems that arise in a cyclical manner, within an episode. Anything outside of these periods are not recognized as symptoms, but that being said, yes I agree this beast can and does affect our relationships.

Also I would just like to mention;
A history of unstable relationships is however a key trait of having Borderline Personality Disorder.

I'm no Doc, I'm not even pretending to diagnose you, but since I suffer from it myself I thought I would mention it incase looking it up may be of some help to you and shed some light on why, when and more importantly, how not to....

Ps. If it does ring any type of true, please don't be alarmed, as having traits of BPD isn't the same as having a fullblown disorder.

We all have traits of something or other...