IMO this is a helpful view. May I say: not many decent young men would be 'prepared' to deal with someone like JA.
Many young men would find this kind of 'jealous obsession' difficult to deal with: her pursuit of him was mixed with the seductive lure of tantalizing sex.
As Dr DM said: "he liked having sex with her" but he didn't like her intrusive behaviour.
IMO her 'jealous obsession' and intrusive behaviors towards him show no regard for his individual rights as a person, just as an 'object' of her own projected fantasies. The degree of her intrusive behaviour, and how far it penetrated into his private life, friends, and family was truly disturbing IMO. Her cunning, manipulation, calculation were disturbing. In the end she took his life!
I tend to think this was a little more that BPD, but these things are difficult to objectively quantify. My opinion only.
Fuskier, I just have to reply to this! When my youngest son was in High School, he was on the football team, the baseball team and into things that teen girls like in a guy. I had heard him referred to as "a hunk". (Haha) He was also a handsome young man, blonde hair, 6 foot tall, skin that looked like he kept a tan the year round. He was friendly and courteous and a good Christian young man.
This one teen girl decided she wanted him after he asked her out for one date. I forgot to mention that he also worked part-time at a Wendy's all through High School. He'd come in late at night after work, tired and ready for the bed. Well, this one girl was calling before he could get home, and he got so he would not call her back every night. Like he said, "I'll see her tomorrow at school" But she got so she'd call at 12:00 and 1:00 in the morning, waking me and my husband after we'd been in bed a long time.
Finally, one night I got tired of that. (We only had landlines then. No cell phones.) So that night, I told him when I woke him up to hand him the phone, "Listen, either you tell this little hot tailed girl that next time she calls here this late at night I'm hanging up in her ear or I tell her. Do you want to tell her or should I" Hahahaha He got kinda mad at me, but she stopped pestering him after that.
That girl was becoming obsessive, controlling and intrusive. A few days later, he told me he had asked her to stop calling him, that he was not interested. So then I told him, "David, that girl is wanting a baby and she's wanting you to be the dad. If you're not ready for that, then don't waste time on hot tailed girls that chase after you and act like they own you and your time."
Then, he met a girl who was 2 years younger than him, did not pester him with calls, and went to church. And, she was not allowed to car date until she turned 16 years old. So about 2 nights a week, he'd go to her house to watch TV or a movie with her and her parents! After about a year of ONLY seeing that girl, I asked him, "Do you get tired of just going to her house and not out on dates to a movie or bowling or a dinner show?" He looked me straight in the eye and said, "Mom, she's worth waiting for." I knew then that was the girl who would be my daughter-in-law and she's made a great one, a great littel wife and mother to him also.
But I was so glad he finally saw through that first girl. She could have been turning into a Jodi Arias, couldn't she?