I'm working on a video on BPD and I want to help describe what it's like to those who don't have it. Based on research, readings, and what I've been taught this is what I've come up with; please let me know if I am describing it inaccurately or unfairly:

"Have you ever dated someone who was wishy-washy? And you get to the point where you aren't sure if they actually care about you and you get scared that they may break up with you? How about being afraid that your friends don't like you? If you've had any of these fears you may be able to empathize. 

Bring the intensity of that fear and extend it to every single person you care about. You dont know when, but you are sure your family is about to leave you; that your friends will abandon you; that your significant other doesn't care about you. However, the thing is that they do care about you, but unfortunately there is little they can do to make that feeling go away."