Hey Willy sorry you're having a tough day man.
I've followed your story pretty closely as well as seen you reply to my and many others' posts. You seem pretty wise and well-versed in BPD relationships but they can take a toll on all of us.
A lot of your statements would fall under what my therapist calls "Common Cognitive Distortions". Always/never statements, black and white thinking, predicting the future. You can find these lists anywhere so here is one of the first ones that popped up when I searched:
www1.appstate.edu/~hillrw/Dep%20Cognitive/cogdis.html
I'm not saying what you're feeling right now is wrong. Your feelings are your feelings. But to step back and try and have a little of insight into them might make it just a bit easier to cope. If you reframe things to say "Today I feel like crap, but that doesn't mean I will tomorrow," it might put you at ease just a bit.
From your postings I know this woman has had her hooks in you and trust me I know it's tough. But didn't you say you have women after you all the time? Why don't you assess your current relationship and either put your energy there or just get out there and have fun.
Personally I'm not ready to start dating seriously (3 weeks NC today). But a friend set me up on a date right after the breakup. I went into it with very low expectations but ended up having a great time. Reminded me of the old cliche "There are other fish in the sea".
And a few other things. If you're talking about looks, didn't you say yourself that she isn't that attractive? Maybe the idea of her is attractive to you but there are plenty of beautiful (and healthy) women in the world. And you won't feel like this forever. Another cliche, but this too shall pass.
I feel your pain and I'm not trying to be harsh, but just want to remind you that just because something is this way today, it doesn't mean it will be that way forever. That's actually the way my BPDxgf saw the world, and we all know that isn't true

.