Eve - I can totally understand why you would want a break from all of this right now. Too bad H can't sit home and take care of boys every day/night while you gallivant off to galas and ski trips.
I think they are both just trying their own "act as if" - perhaps embarrassed at being caught and publicly "outed", and now determined to carry on as though nothing ever happened. OW sounds like a totally self-centered person. She's left her H who's disabled by a stroke? Maybe their M was never good, but it sure sounds pretty cold-hearted to me.
And, your H is definitely in his own little world right now. But - at least he is still keep involved with the boys. It sounds like a lot of the MLC or walk-away Hs drop their kids along with their wives. Maybe you can't totally ignore him, but could you have some ground rules to limit contact? Like tell him you are going to keep your phone off and just answer texts once a day. . . Or, have a discussion to get all of the child care details sorted out at one time instead of text by text.
I know how hard it is to be the one taking the high road, but you will be glad later that you did. I didn't have internet access this weekend, but thought of you often.
me: 47 H: 48 he has 2 grown sons M 1995(my 1st, his 3rd) hit iceberg 6/07 S 9/26/07 before now