There is much anecdotal evidence to support that fact that people with Borderline Personality Disorder are forgetful. They can say hurtful things and not recall them. People who forget things repeat themselves.
He may have other things going on. Perhaps he suffered some kind of traumatic event (in the military, an accident, child abuse) and also suffers form posttraumatic stress
disorder. People can have more than one disorder, comorbidly, as it is called.
He exhibits the characteristics of a person with BPD, which includes mood changes, such as you would find in Bipolar Disorder, where you can swing from a depressed state to a very exhuberant state, sometimes also demonstrating reckless behavior. There are similarities, but your boyfriend seems to be concerned about your relationship and that is why he is testing you. It is a very important characteristic of BPD.
Needing to sleep a lot is a characteristic of depression, but it is focused on you. His worry about being abandoned makes him depressed and therefore he sleeps.
The jabs he gives you are part of his passive aggressive behavior. He says he is just testing you, but he is hurting you emotionally. He claims he is just testing but he is hurting. That sounds like BPD to me.
Although there are similarities between the two disorders, one is a mood disorder and responds to medications (bipolar); BPD has mood swings, but it is a personality disorder, of the type hyperactive/impulsive disorder. Check out the link above for a description, and this one below for a simple explanation of the differences.
For a slightly more technical explanation go to the this site.
The botXXXXX XXXXXne is that they are not the same.
I hope I have answered your questions
Elliott Sewell, LPCC, NCC