In my opinion, the best thing the email could do is to show how far you have come and how far you have moved on...but again you never know.
If H is truly on the fence, reality that you have dropped could hit him. If H is still deep in his fantasy world/La La Land, it could be a relief to him and make him move even faster away. That's the thing...when the Spouse isn't talking to you and even if they are, if you don't know if it is lies coming from their mouth, it is a waste of time to try to figure out how they will react. That being said, I was one of the worst at following that advice. But now that W and I are talking about the past and I'm learning of all the lies...even ones that I thought weren't lies...what a waste of my time. So I'm hoping others can learn from my mistakes now that I am (painfully) learning a lot of what really was happeneing...
Keep treating him like a colleague/acquaintance, nothing more. (a) it helps you detach and (b) shows him reality of the future he is choosing
M39 W41 Two children WAW bomb dropped 11/7/09 Piecing Aug 10 - Nov 10 No longer piecing...Nov 10 Separation Jan 11 EA ends again Feb 11 Piecing attempt #2, Mar 11