Married 7 years at time of bomb-droppage (11/1/02) -- I had started suspecting h of an EA 5 months before that (5/1/02).
Never separated (knock wood).
Found DB'ing ~1 month after bomb but had actually been implementing some of the techniques w/o knowing it.
Saw some teeny babysteps within a month. Noticed bigger babysteps over next 4 months. Found a direct correlation between how WELL I was able to control MY STUFF and the babysteps. Had my first real unconscious feeling of "I think we'll be OK" about 8 months into DB'ing.
One thing to note is that it's truly not a straight shot...you'll have the proverbial rollercoaster ride for sure...some of that WILL be in your control and some of it likely won't be (but that's OK). Backslides at the 1 month mark, 4.5 month mark and 6 month mark (I'm talking big backslides on my part) were tough for me to handle but the recovery period got shorter and shorter the further into DB'ing I was.
Sage
Relax. Appreciate. Be calm. Laugh. Enjoy. Be secure. Be loving. Be loved. Don't personalize. Don't ASSume. Accept. Be grateful.