I called her Monday at work to get my guilt off my chest. I apologized for the severity with which I reacted because I realize I scare the hell out of people when I lose my temper badly. I didn't apologize for what I said except for calling her a horrible name - something I swore I would never do again following my divorce 12 years ago because it is not something I want to be part of my character.
She, as usual, used this whole episode to her advantage by telling me that my outburst was violent (it was loud and explosive but I did not threaten physically at all nor did I throw anything - in fact she threatened me physically if I ever "come at her like that again" and that she slept with a hammer under her pillow even though I left and drove home at midnight (an hour home to my place) even though I am not a vindictive person, felt bad for exploding immediately once my temper subsided (and apologized for my outburst right away), and have never behaved that way nor violently toward her in the past. She told me she thought I was going to hit her even though I had no such intention (I just wanted her to stop bullying me and to hear me) and I have never done that in the past.
She lied to her parents and her son (who slept through the whole thing 10 feet away) that I had to leave for a family emergency (so not the truth which I told her to tell him/them). What this does is protect herself from scrutiny from their knowing there was an argument and also makes for a potentially non-permanent situation - meaning she told me that night to never come back and she never wanted to see me again. The therapist I talked to came to the same conclusion as I regarding that - i.e. clearly if she meant for it to be permanent she would have told everyone she kicked me out because I am a violent and dangerous threat or something. This also exposes her for being manipulative and controlling on multiple levels. Also now she says she's not entirely sure what she's going to "do" -

- after hearing all this, as usual when her transparency reveals itself, I feel relieved and also almost have to hold myself back from laughing a her child like attempts at manipulation because I see through them but play dumb and don't let on. I was also told I was extremely "brave" for calling her - ok there Tarzana.
I don't really know if I will ever see her again or not but it's most certainly not the first time I've been in this exact situation so I don't sweat it much anymore. I'm happy in life on my own accord and I keep her in my life because I feel bad that she's so messed up and can't see it - however, just like with a pet tiger, I make sure I never get too close.