Ok I just read your story. Unfortunately my H is saying he is NOT coming back. He does not feel he is having an A because he walked out a year ago ( even though EA - and probably PA too - has been going on for over 3 years)
If he's still married to you then it's an affair. He's involved in infidelity. The fog prevents him from seeing that. It coats his brain with a thick layer of stupid. Most things he says will come off to the rest of us and completely stupid but he won't see it because of the fog.