Although my H and I are childless our situations are quite similar. When he was first deciding to turn his back on our marriage he was so cold and uncaring I could not believe it was the same man who had told me that he cherished me. It was only two years ago when his anniversary card included the message, "Happy 23rd and I hope we have many, many more."
All the changed when the MOW confided in him about her marriage, spent time with him, told him she loved him and he succumbed. Believe me, when H turns into an alien it is so much easier when they are out of the house. As yours did my H said he wanted to live on his own, have his own space, and cook the food he likes to eat.
During the summer I periodically dissolved into tears of grief, I wasn't lonely but I missed him and the routines and rituals we have shared for so many years. I followed my DB coach's advice and worked on getting a life. I never thought it would be possible to honestly feel that I will be ok without him. (Not hard when I remembered that he was so nasty while he was home and couldn't wait to leave to meet with the OW. I knew he telephoned her on his way home at night and sat in the car continuing the conversation before he came in.)
Well, after a summer of not being very available to him, yet being upbeat and friendly when we did have contact, he is being more like his former self. He is interested in what I have been doing and appears to be showing just a little bit of caring.
So, don't lose faith just know that there will be some difficult times ahead. Try not to think that you are being placed in a situation that you did not ask for. Time is your friend. The OW will show her true self before too long. Don't give your H any reason to justify leaving the M and he may remember why you were married for such a significant time.
Me: 59 H: 59 Together: 28 years Married: 25 years in August "There may be someone else" 12/26/07 H signed a one year lease 4/1/08 H moved out 5/11/08 H beginning to show a tiny amount of interest 7/5/08 Is it possible that he is courting me? 9/30/08