I kept a journal which I poured my heart into and wrote in it all the bad, horrid feelings I was having. No-one else saw it and recently I destroyed it. It took me a long time to work myself through the emotional range but I managed it in the end because I knew that MY emotions could actually destroy everything.
Your W knows you are hurting. If everything else in your M is ok I would recommend trying to act 'as if'. Put a brave face on it and carry on. Be under no illusions - your W recognises she has dealt you a HUGE blow. She will be nervous inside as to how you are going to react.
There are several books out there on surviving infidelity. They have really good ideas on how to cope with it all. Unfortunately there is no way to bypass the emotions you are going through IMO, you need to work your way through them with as much control as possible. Come here and vent rather than letting off steam at your W. I know it hurts.
Saffie me 46 H 46 M in 1986 D20,D18,S16,D13 H's A 01/05 to 07/06 H recommitted to M 07/06 renewed vows 09/06 Going from strength to strength