SR - DON'T beat yourself up. Hindsight is ALWAYS 20/20! You did what you thought was best at the time. You might have done it the other way and you'd still be in the same place today. You just can't control the other person/people and how they're going to react.
I feel like you at times. My WH's EA affair with the neighbor (OW) grew slowly over the last few years (hard to say when it "happened") and he told her in 9/09 that he would be her emotional support so she could stay in her M with her H. Huh? I didn't know any of this until Dec. 08 and from there forward have tried everything from Mort Fertel to many hours of reading to Larry to "fix" it. I'm sure some would say I'm crazy and should have exposed. I have to remind myself that I did what I thought was best at the time as I was completely blindsided and devastated about my marriage ending. In reality I think I needed that much time to start to accept that it might be over.
So, bottom line is I think you should give yourself tremendous credit for taking the path you did. Hang in there!
I'm still trying to stay on the wave. Freddy gets me often!!
--------------------------------- M 47, H 47 DD 5, DD 12 Married 23.5 years, T 27 years Separated 4/17/10 EA/PA - started probably about 3 years ago