Just wondering if any of your HPDs had childlike fixations on animals. I think mine saw them as cartoon characters. ("Hallo Mr Hamster! Mr. Hamster should be my friend! Did you see that, Mr Hamster was looking at ME!") and so on. It was somewhat endearing, but a little creepy at the same time. She had three cats when I met her, and was planning on getting several dogs. She would practically harass other dog owners she passed on the street. The very fist time I realized something was 'off' with her, I think on our third date, was when she interrupted a serious conversation mid-sentence to cross the street in order to meet a dog. She talked loudly in goofy dog voice and made both me and the owner uncomfortable...and this would repeat itself endlessly over the years. It was like a switch went off and she was 5 years old.
I'm an animal lover myself, so I could understand, but it was always like watching "Grizzly Man" (If anyone's seen that what personality disorder would you ascribe to him?)