Your H reminds me a lot of one of my friends. Apparently she had an affair with a guy from work. He was married and it went on for a good 6 or 9 months. They even talked about divorcing their spouses and marrying each other. Well, she went ahead with the D and he ended up going back with his W.
In the meantime, she decided she still wanted the D. She figured there was plenty of fun guys out there, and she didn't want to be married to her "boring" H so she went through with the D.
During the last couple of years I've observed her go from enjoying the "wild single life" where she originally started out having short relationships with other D men or married cheaters, and sleeping with every guy in town... to finally morphing into someone who doesn't want to be alone, and would really like a real reationship.
Anyhow she recently met a guy and instead of having S with him the first night, she AMAZINGLY has held off for two weeks!!!
It sure has been interesting to observe my friend and these changes. Who knows maybe your H will go through something similar. I imagine he's intrigued by the novelty and excitement of this lifestyle. Of course, by the time he's tired of it you will probably be happily remarried....
There is no arriving, ever. It is all a continual becoming.