I'm trying really hard to put on happy face when she is around but she knows me so well that she can tell I'm faking. I need to do a better job of looking happy. I know W is still worried about me as she keeps checking on me to see if I'm ok and I'll respond yes and sometimes she's ok with that and other times she presses for more.
Why pretend that you are OK? Do you think that if she thinks your OK and going out with friends that she will then come back??? The fact that you are not OK is making her feel guilty!! That is good. Making this easy on her by waiting to tell the kids, allowing her to tell her version of this affair, and by pretending to be OK just helps her continue.
Affairs need to be exposed. The cheater needs to feel embarrased by their friends, co-workers, and family finding out. This should never be done on their terms.
You should sit the kids down and tell them what is going on and who this guy is that is tearing apart your family.
So far this whole thing and worked perfectly for your wife and the OM. Yeah she feels sorry for you but that doesn't stop her. Pressure and embarrassment from family and friends might.
Don't sit back and allow her to steer the divorce ship with you in the passenger seat.