I was diagnosed borderline back in the early 1970s when it meant something slightly different, more a literal borderline between neurosis and psychosis because I had a very "active" fantasy life I was living in :-) But anyway, I wasn't hostile either particularly, a tad too sarcastic thanks to my stepmother and a brother who "taught" me that "skill" but somewhat PTSD too from my mother's death when I was a toddler and my stepmother's abuse growing up. But much later (1990s) my T said she was working on the GAD, General Anxiety Disorder, theory of me :-) You might see if you "like" that diagnosis better.

http://www.nimh.nih.gov/publicat/anxiety.cfm#anx7