Sounds like you're having a rough week Mozza. So sorry to hear it. I totally get how you snapped and sent that email. I have been tempted to do something similar SO many times, but then I start thinking about the likely reaction, and restrain myself. You got the exact reaction that I imagine my own WW giving - she just doesn't care.
I really hate to see your sitch progressing this way, because it is so similar to mine, and you are a few months further out. Unfortunately, I imagine myself being exactly where you are in the near future, although I suspect that I may end up being the one to finally file for D. I decided I just don't have it in me to hang on for years and years, while WW openly lives with OM. Yes, it's hard to let go, but eventually, we need to claim back our dignity and self-respect. You don't deserve to be treated this way.
Take pride in the fact that you are a great father, and have been a source of inspiration on these boards for months. I'll be following your sitch closely and hoping that things turn out great for you, regardless of what your misguided WW ends up doing.
Me 47 W 42 T 24 yrs M 18 yrs W living with OM BD1: 3/7/2015 (A with OM#1) BD2: 4/11/2015 (A with OM#2, W moves out) WW filed for D, papers received 9/18/2015. Meeting to determine child custody 9/29/2015.