Z.,
In the past, Ive read your previous questions, but every time I went to formulate a response, there was just too much confusion in your posts and too many seeming contradictions from one post to the other for me to be able to offer you a decent answer without investing a major chunk of time to ask and wait for clarifications that may never come. I could never make sense of the timelines with respect to the various work problems, and I couldn't understand how you could be contemplating quitting your job when just a short time earlier you were having trouble paying your rent while being married to a man who didn't seem to have his financial priorities straight.
I don't say this to be mean. If you were my friend in real life, I'd say the same thing. And, if you want help from us in the future, it's important to be as clear as possible when posting your question as well as understand that you're going to get a whole range of responses when you ask questions on a public forum. You don't have to like all those answers, but you do have to understand that if you ask, you can get just about anything in response.
Now, having said all that, and reading through your current post, my response is probably one of those you would consider "judgmental," but I don't feel I'd be at all helpful to you if I didn't point this out. Almost all is see in your words here are how horrible EVERYONE at work was to you and how terrible you still feel about it.
Can you look at this situation and accept any personal responsibility? Not for what other people did or said, but for how you responded, failed to respond, and/or allowed people to get under your skin? You can't control what other people say and do, but you do have control over your own actions.
You seem to be dwelling on this experience in an unproductive way, but if you change the obsessive dwelling to honest, open reflection, it could be a good thing. Instead of dwelling about how poorly you feel you were treated, can you ask yourself how you could handle these situations better in the future? Can you see how you may have contributed to the negative dynamic that developed and grew between you and your co-workers? What could you have done differently that would have made a difference in your attitude toward your workplace environment and co-workers?
I think taking some time to contemplate those questions and allow yourself to be open to the idea that you have some responsibility, too, might result in answers that will help you in future job and personal situations. It's a pretty good bet that somewhere, at a job in the future---even if 90% of the people there are just lovely---you're going to run into that one person who gets under your skin again. Find out how to spot the behaviors in people that trigger you to feel defensive and work on developing strategies so that you don't feel so victimized and helpless in the future.
Wishing you the best.