Romeo thanks for your reply and I spend quite a while last night reading your sitch.
Really I look at your timeline 2006 / 2010 and I know if I went back into it with her it would just be a few years of wheel spinning and time wasting.
She is a cheater - more than one affair was disclosed during the storm and I just never expected that.
My kids are 3 and 6 so you are right we will not be out of each others lives for a long time.
I am in the process of letting her go. We have been together for 15 years and on and off since I was 16 in highschool.
I don't expect that to disappear overnight ... its just one day at a time.
I cannot file because in Canada where I live there is a mandatory 1 year separation required before divorce will be granted. So there is no point in filing until 3 months before that date so that would be Feb 2011.
I guess I don't know what to do with this play fighting and flirting ... I guess really I just answered my own question like my username. I should get some nads and tell her to stop. Period.