There is no way that I am going to have my kids living in a house headed up by two people who think it is ok to have an affair.
Understood, but may I suggest that you be very careful about verbalizing this to her. No matter what your moral standards may be....the law will allow her part custody in most states (from what I've read). Doesn't seem right,does it....but I read right here on the board where it happens. She is their mother and as much as you want to control who she introduces into their lives....that isn't always possible.
So,blow off steam to us,Punchy.....just be careful what you say to her. I remember all too well how I would resent my H's threats and would silently vow to show him that he had no control over me.
((hugs))
It is not about what you feel should work in your M. It is about doing the work that gets the right results. Do what works!