I've never had an EA and can say that I was never tempted to leave or cheat on my WW. I'm not saying I'm immune, but that I agree that I lack the insight of how it can happen. Perhaps I'd be more forgiving, less suspicious.
Anyway, I don't want to pile up more on top of this. As usual, you seem to take a very mature approach to the whole thing — remember when I had to check your signature to make sure you weren't a 50-yo woman ;-) — and to take things slow. The Great Dating Debate on my thread 11 shows well how dating-while-separated is perceived here, but I think there's more leeway in it. There are several LBH of our "BD generation" facing this question now (jim0987, MCS, you, me), all of us still married legally, yet left behind without the shadow of a doubt. I've success stories around me of people who remarried quickly and have a healthy R several years down the road. I've looked up some research and the delays between R do not seem to be a determining factor of success.
I'm not saying we should be dating, just that it's an option. I'll agree that it can make R less likely, for obvious reasons.
Anyway, keep beating your own path on this and I'm happy to follow your adventures.
M39 D6 D3 (at S) S 2014-09 D 2016-09
"You can't start a fire sitting around, crying over a broken heart" - Bruce Springsteen.