First thing to mention, and probably the 2nd most important point to take in, is that an EA is usually no less devastating than a PA. Whether the betrayal is emotional or physical, you'll probably feel as awful as you can, so don't discount your pain.
Second, the best way to get to an optiomal resolution, your best bet, IMO, is to deal with the grief, anger, fear, shame, whatever that you feel. A good IC isn't absolutely essential, but a good IC can help.
Third, love is not enough for rebuilding an M. It takes a lot of work from both partners, and that means both partners have to want to change - you need to resolve the awful feelings, and your WS needs to the work necessary for her to change from cheater to good partner. You don't know what she wants, yet. You don't know what he'll do, yet.
Most important, know that you can heal. You may not be able to R. As I write, that takes a lot of work from both of you, and you can't control your WS. Healing requires you to do your own healing, and you control you. Sleep can be hard to come by now, but that won't last forever. Drink water, eat what you can, move your body, feel your pain and let it go - if you keep it up, you will survive and thrive.
There's no getting around this horrible period, but you can get through it to a good life.
[This message edited by SI Staff at 11:37 PM, Saturday, October 25th]