Ace-
I mentioned a time machine on Froz's thread and wonder if the same experience might benefit you. 10 years from now, will your girls (who will be in their 20s and possibly married, too) truly have been protected? Or will they have missed out on an educational opportunity?
Another question I sometimes spend too many cycles contemplating.
I think it depends on how all this plays out....
If my wife and I stay married, there is no fourth affair and we rebuild a happy marriage, then I'll be glad they didn't ever know about her affairs.
"Educational"? I don't know. Plenty of kids grow up in households where infidelity isn't an "educational" opportunity. Sure, if they knew about her affairs and saw how important we valued our marriage/family and saw our recovery process, then maybe they would learn something.
But, OTOH, if they found out about her first affair, realized she didn't value me, them or our family over the OM, saw us recover and rebuild and then saw her have another affair, I'm not sure what lessons that would teach. Maybe a destructive one.
I do think, sometimes, that if they knew about her first affair it might have been a better measure of protection against her second and third affairs, but again, I don't know.
Might they be resentful that they were not informed possibly b/c mom and dad didn't think they could handle it?
Possibly. But I don't know. My wife did some pretty "unmotherly" things in the aftermath of her first affair in terms of "using" our children as leverage against me...My wife found me sitting on the OM's porch waiting for him to come home so I could "explain" to him how much I insisted he stay away from my wife. She called my 11 year old daughter and asked her to "tell daddy to come home". BTW, I don't believe her intentions were to protect me from prosecution, but to protect the OM from me.
My point, if I had been thrown in jail or one of us had moved out for a time or we had to move, then I think a full explanation was due to my children (age appropriate).
Have they been exposed to some of the more "active" aspects of D-Day and recovery? Yes. But the explanation is, "We're having an issue between us. We'll tell you if we think you need to know."
It is possible my kids "know" something. I've not gone to great pains to hide some of the books on marriage I've been reading, although my wife hides them pretty well when she finds them. They're 18 and 17 now and are pretty sharp young ladies -- I'm sure they know that we've had problems. Do they know the details? I can't say.
So, long answer with brief summary:
For us, the decision to not tell our daughters was motivated by their protection. And not only their protection from knowing about their mother's affairs, but protection from divorce. On the days I want to give up having to worry about affair number four, I think of them and the emotional, financial and relational impact divorce would have on them and it blows some fresh wind into my sails.
I love my girls (wife and daughters).
Blessings