RCR's article "Affairs and Midlife Crisis; Personality Disorders" is an excellent read that inspired me to find out more about BPD. The question we ask is "what kind of woman would go for a married man, a broken married man in crisis?" and the answer is pretty much someone with a Personality Disorder. Add to the mix that the MLCer can also have PD of varying degrees or types...I know my H does, and his mother is severely Narcissistic.
I have heard him make implications that I have BPD, but the more I read, the more I am sure it's his projection. He is strongly attracted to BPD in women, and has been for some time. Tension in our marriage results from my NOT fitting BPD. Although that could be changing as he is asking for me to be more independant (that also could be so he can abandon me and move on to the next OW).
I do get that idea of Medical Students showing symptoms of what they are studying though, but this article helps sort it out more. Yes, people can fear abandonment without having a disorder. Fearing abandonment when you are being abandoned is a sign of health, I tend to think.