Renaisanceman, it is not a "mood shift" or any other esoteric psychological issue but name confusion whereby I was thinking of what you previously stated while responding to the other poster resulting in my mistakenly placing your name on the post rather than the poster for which it was intended. Once again sorry for the confusion
OP, while I rarely "get along" with the posters you referenced, I didn't see any "anger" or "ranting" in their responses to you. So, let me say as gently as possible, that it's common for someone, who has been involved with someone with a personality disorder, to have a lot of issues to deal with in the aftermath. You won't "work them out" in a thread on POF.
There are "support groups", and it wouldn't be a bad idea for you to work through some of the residual issues with a therapist. The "posters" you have responded to harshly DID NOT cause your pain, and they can't fix it. It seems to me that, until you can work through some things, you have an emotional block, that is going to continue to prolong your pain.
In any case, I wish you well.