Brian,
Welcome to MarriageBuilders. As you now know, it takes a lot of lies to yourself to have an affair. I hope you came here to be held accountable, to get to your real whys and unravel all those lies in order to save your marriage.
Begin with posting in the correct forum. See, you're not negotiating in your marriage...you have been attacking and destroying your marriage with infidelity. That's reality...not a judgment. Step up to that and move your post to the Infidelity forum, General Questions II...gets the most traffic, deals with recovery...personal and marital.
Get "Surviving an Affair" by Dr. Harley. Read about the steps you can take to save your marriage, even now, when you've had several false DDays, heaped hurt upon hurt (each new contact continues the A, so your BW experiences complete and devastating betrayal again and again) on your BW, your family...and others.
There's the No Contact letter, transparent actions...lots of stuff. None of it discounts your pain, either...what it does is address by actions first, where your priority really is...and then you wrestle with your whys.
If you want to leave, go figure out your whys, then you will lose your marriage. Your beautiful real wife and marriage...and you'll lose the chance to work out pre-A stuff, together...with your real life partner.
And you'll just have fantasy continuing, which is OW (not real)...and so your life will repeat with this again and again.
I wouldn't wish that on anyone, Brian. You're worth so much more. I lived it myself...until I stopped.
You can do this.
LA
PS...Welcome Marshall, too...what an awesome post.