What a catchy subject! Hopefully it will bring wonderful responses for I certainly could use some advice here, too.
One thing is different for me for H is still at home and swears it's only an EA. We talked about it once and I told him an EA wasn't any easier. If he had a "one night fling" it would be easier to forgive and forget.
So Jeanb let me know when you figure out how to ML with detachment from OW