So I got a bit mean on a voicemail, said that my pain ended this weekend and that meant I was getting my stuff. That I wanted it either friday night or saturday and if I didn't get it then I was going to start showing up randomly, which I knew would scare her enough that she'd make sure I got it.
I read that fairly benignly. I think Jake's just putting his (ex-)girlfriend on notice that thus far he's been considerate of her needs and has put up with her rather ridiculous explanations for her absences. But now she really does need to cooperate and show a little consideration in return about his belongings, or he's not going to continue to be so considerate about honoring her excuses and white lies.
Overall, I think Jake has acted honorably and fairly enough up to now. I don't see any solid reason to presume he'll be any less honorable in the future. He's just talking about a change in course--a realization that they're finally over and he has to look out for his own needs as well as hers.
Also, Jake was rightfully castigated early in the thread about how he shouldn't presume to diagnose his (ex-)girlfriend with Avoidant PD. In turn, I don't think we (the readers of the thread) should presume to make that diagnosis either. That is, we probably shouldn't make our own assumptions and interpret a reasonable wish (wanting one's belongings back) as a case of Jake of threatening or tormenting someone with a personality disorder. After all, he's only talking about getting his stuff back so he can get out of her life.
Disorder or no, it's not unreasonable for Jake to ask his (ex-)girlfriend to take a few minutes and work with him on such a simple problem. In that sense, I read "a bit mean" and "scare her" as relative terms. He's probably just getting more blunt with her and saying that she really does need to stop worrying so much about her own needs, and take into account his needs long enough to pick up his stuff around her house and put it out on the porch for him to pick up. Again, not an unreasonable demand under most circumstances.
Jake's the one in the hot seat, and he has won plaudits for his sensitivity and fairness thus far. Personally I would prefer to continue giving him the benefit of the doubt and assume that if push comes to shove he'll continue to take the honorable course of action. (Also, ENFPs traditionally take a lot of pride in being the guys wearing the white hats, which makes it pretty easy for me personally to give them the benefit of the doubt.

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