I feel your pain Tom. Honestly, I know it all too well. My XH had our son around the broom 6 months before he dropped the bomb. She was a "friend" from work who had been through an ugly divorce (6 years ago - he made it sound recent) and just needed a buddy to help her do some stuff with her son. Since my son was along I wasn't threatened by it - Um.....duh! Can you say stupid, trusting fool? Since he left us he has seen no problem with having our son around OW long before the D was final, doing everything together like a "happy little family", it's all quite normal to someone who has absolutely no moral values whatsoever. Sorry you are experiencing the same thing.
Do yourself a favor, don't ask what the kids think of OM. That would put them in a position to lie to save your feelings. Try to be content with the example your are setting for your kids of an upstanding, honest man of God. Be the bigger person Tom. We all know you're 'da bomb!!!!!!
T19 M15 S19 XH47 M43 bomb12/4/07 PA5/07 S12/26/07 D final 11/17/08 Back together with no defined R 05/2010 confused....to say the least!!!