<< There are 2 other guys that live there and we have become known as the "Divorced Guys Club".
Vent until you get 90% of the 18 years of accumulated crap out of your system. May take years.

<< My kids are doing OK.
Probably just on the surface and for now. Jenny will use D to whack you 2x4 style until it comes back to hit her. You will get blamed for and sucked into all D's drama with Jenny as stage director.

<< it was a choice me and mom had made together and no 1 person was to blame.
Strange choice. In my case I did not make the choice and I know who was to blame. Usually 1 person makes this choice and years before it comes to pass.

<< we have not been able communicate for 18 years I am not sure why she thought more distance would help that situation.
Heard this one too. People come up with more nonsense to justify their bad decisions and actions. Some even get divorced "for the sake of the children". Faulting and labeling you is another attempt at this sort of justification. This will probably continue until she finds someone or something better to do and the guilt wears off. Like some others I had to battle a lot of this in court at huge expense. I found its best to establish clear and firm boundaries, the earlier the better.

<< The X is dating someone new and I have been dating also.
So, quickly? The dust hasn't even settled. By the way, odds are she will get hooked onto someone much sooner than you and that will trigger another stage in the on-going drama.