LOl - your H is such a predictable idiot. Wants to have his affair but gets all worked up at the idea that YOU might look elsewhere??? He's following the script to a T.
If he says anything more about it just remind him that HE has been the one having the affair while YOU suffered. That YOU are a woman with a lot of love to give and if HE doesn't want that love, you will move on and find someone who will. That YOU have honored your marriage vows and still are honoring them, but if he isn't willing to give up his affair, you will no longer consider yourself bound by them.
Then let him stew a bit more.
It's actually a positive sign that he's so jealous.
(Haha - once when my H was having an affair, we were driving somewhere and he had to answer my phone for me because I was driving. Then he started looking through the incoming calls and asking me about any unfamiliar numbers. HE was the one having the affair, but suddenly it occurred to him that maybe I could do the same? The numbers were all things like the auto mechanic calling me to say the car was ready etc. It was just hilarious to me though - like it had never occurred to him until that moment that what was sauce for the gander might be sauce for the goose. )