I might be crazy to think this so soon, but it really does appear as though my H is finished with OW.
Trust your gut, but verify. When BF said he wanted to reconcile and he was completely done with OW it was true for the most part. (I insisted on no contact and he did go see her to break things off and didn't tell me about it.) While I continue to check his email and phone history there has not been any contact since I sent his no contact letter in late April. I told him that I understood if it was difficult for him to let her go and he swore to me that it wasn't, he was done and didn't think about her anymore. I had a hard time believing him but think I've reached that point now. Seems like I'm the one having a hard time letting her go when I allow thoughts of them together to interrupt our life together. But I know that will pass with time.
So just saying that your H may not be going through OW withdrawl, not everyone does.
It seems my H is done too. He keeps saying he over and done and has no contact with her and that he doesnt miss her. Since last year we went thru a fake reconciliation process, I assume that was the time when he was going back and forth till he got over her. I cant see any other explanation than that he went thru that phase while I was still in the dark about her.
And I too, find it hard to let her go. Sometimes he looks at me as if I am crazy when I talk about her as if "wtf are you talking about? She is loooong gone". I hope it is true. K