My next question is, why do BPDs become obsessively jealous? is it because she fears abandonment, or do you think shes trying to find a reason to push him away?
Well they feel threatened, even my ex said this once in a very covert way.
She was talking about a coworker who may or may not have liked me when she started working there.
She would always ask for my help since she was new, but in a lot of ways "Superior" to my ex. For one my ex hated that she had no boobs.
So mx ex told me that she didn't like this girl because she was so forward with me.
Another time we were going to a company picnic and the only seat left was next to this girl. Then my ex walked over to us and I was showing the other girl pictures on my camera. I didn't mean to "ignore" her.
So yeah I found this out later, but now I realize these were triggers for her. (waay too late)