ACJ, it is amazing how kids know the truth (most of the time)and have no problems with convictions. Your kids are loyal to the family as you are so I can relate to your D not wanting the OW there. I would be the same way if I were her. My father was not faithful to my mother and he was so self-centered he did not keep the affairs secret from me. Instead of me following in his footsteps, I felt it is critical to be faithful to your partner.
Your children are fortunate to have you as their mom.
mmf
Me:56, W:51 D:26,S:24,S:22 Married:18 Bomb 9/27/06 Separated 11/27/06 Divorced 10/6/08 Leaving it up to God