I have an actually helpful idea...but I want to make sure I have the facts straight.
You love your wife and have a marriage that is good and makes both of you happy. You have no intent to stray in any kind of way, nor interest in another woman.
There is a new person at work who happens to be a female person. This new co-worker is
... is one of the most difficult persons to get along with I have ever met.
In addition to being hard to get along with, while in the workplace, the new co-worker
...has recently been fighting with my other co-worker ... (and the new co-worker) is trying to get me to take her side which I won't do.
So my first actually helpful advice #1 would be to call a meeting between all the people in the office and in front of witnesses, inform the new co-worker that you have observed the fight between "new co-worker" and "other co-worker" and that you will not be drawn into the fight nor will you side with one or the other. I suggest that you do this in front of others because your new co-worker is trying to set up a situation of "us against the world" and if you in any way feed into that illusion, she will pressure you harder and harder to be on her side. Be professional ONLY...but be very factual in stating that you will NOT become a party to the disagreement and that you will not pick EITHER side!
Next, you state:
It has now escalated to a regional manger issue. She has been in tears and has threatened her self-indirectly. The most troubleing issue is that she has also complained about her husband and the lack of their sex life. She has told me up front she is horney and needs to get "l..D"
When you say this, I assume you mean she has said or strongly implied suicide partially over this work argument and partially over hubby trouble and being horney. This kind of discussion with a person at work is HIGHLY INAPPROPRIATE. Now Aragon...would you EVER in your wildest imagination consider discussing suicide or your sex life with Arwen with your boss? Or how about his/her boss? Then why in the WORLD would this kind of discussion be appropriate between you and this new person? It sounds to me as if this new person is using you as their personal "shoulder to cry on" and I would suggest two things.
First, speak to Arwen and tell her every single thing you have said and the new co-worker has said--EVERYTHING. Leave nothing out so that nothing is blindsiding her. Then listen to her wise council on how she would like you to proceed so that she feels the M is protected.
Second, if a worker is NEW, and already difficult to get along with, and already causing fights, and already taking it to the regional manager level, and already causing office people to "take sides," and already speaking inappropriately to a male co-worker, and already threatening suicide...this is information that HR really does need to know. You are not being "mean." It is not your job to protect her from herself. But a business has the right to know that one of their workers has become a bit improper and has the right to protect themselves! The business could be in BIG TROUBLE from a trouble-maker like her, and HR needs to know!! This would only be info in their file that would help them to document why they might need to fire her.
You asked:
How do I put a stop to this without pushing her over the edge. If I bring this up to the district manager she will be fired, and my wife is already ready to read her the riot act.
What does POJA say, Aragon? You tell me... You are not just an individual anymore because you voluntarily vowed to become a partnership with your wife and consider her in all your decisions. So you two deal with this in AGREEMENT or you do NOTHING. Do not make up your own mind and do exactly what your wife told you would not work for her. And furthermore, if the new co-worker has behaved in a way that would cause her to be fired, then it is because of the way SHE CHOSE TO BEHAVE, not because you told.
This is a lot like an affair, Aragon. Remember how the WS says to the BS, during exposure, "How could you have done that to me and gotten me fired from my job?" It was not the BS speaking the truth of the affair that caused the termination...it was the fact that the WS chose to behave in a way that warranted termination!! Had the WS chosen to behave properly, the BS could have spoken the truth and nothing would have happened. So if this new co-worker has chosen to behave in a way that warrants being fired, it is not because you spoke the truth!! It is because of HER CHOICE.
She is personally responsible for her choices, Aragon, not you. And YOU are personally responsible for how you choose to act and how you choose to treat Arwen.
Your faithful friend,
CJ