Pearl, That is interesting - I have a couple of thoughts:
1. Men just don't instinctively "get" stuff like women do, and do not read minds 2. xBF may simply feel like a complete idiot, not deserving of your grace and beauty, and be humbled beyond all words, and think that he doesn't stand a chance.
Since he has made at least a minimal effort to tell you about OW - it may simply be semantics. So, check his email! Why wonder about it?
To me, it has been a glorious week. I told W EXACTLY what I expected, and what would happen if she chose affair/divorce. I feel liberated. When I go and file divorce Friday, I will never look back, mostly because W CLEARLY knows what she needs to do. Obviously, it is always her choice, and I won't attempt to force her one way or another, but now, there will be no questions, no wondering "what if", and so on.