What you're going through is entirely normal.
Dramatic media - movies, TV, novels, even news - teaches us that it's easy to recover from being betrayed. Nothing can be further from the truth, IMO. In a relationship that's meaningful to a BS/BSO (Betrayed Spouse or Significant Other) cheating hurts immensely. It just plain messes up the BS's life.
It's one thing to want Reconciliation immediately. I sure did; I knew I wanted to stay M. I'd been in love with my W for 45+ years on d-day.
But Would not let myself stay unless the M became great. To stay, my W had to change - she had to stop being co-dependent. She had to show me she loved and was in love with me.
If she had not started working to change from cheater to good partner, I like to think I would have walked - and that's what I recommend to you.
Figure out your requirements for R. If she signs on, or if she suggests alternatives that you are OK with, R is possible. If she won't, you're likely to be wasting your time.
Standard requirements are
No Contact ('NC'),
therapy/Individual Counseling ('IC') for your W to get the help she needs to change from cheater to good partner,
honesty - answering all your questions and no more lies,
transparency - keeping you informed of her whereabouts, activities, and companions at virtually all times,
Marriage Counseling ('MC') when one of you thinks it will help.
and specifics for you (for example, my W had to arrange weekly dates for a while - it turns out she's better at that than I am, so she arranges most of our excursions even now).
Right now, your W doesn't sound honest. I urge you to at least consider demanding honesty. I mean 'demand' - either she delivers, or you D.
You cannot R with a person who is still lying. You can rug-sweep, but if you continue to do that, you will be selling yourself out and setting yourself up for an even worse M than you have now.
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I strongly suggest you do not mention SI to your W. Keep SI for yourself for now. If she ever commits to doing the work necessary to R, you can share it then.
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You'll get 3 types of advice here. The first type is very useful - it's the counsel that helps you figure out what you want.
The 2nd is useful, too - it lays out how to achieve a goal if you decide you want to achieve that goal. (This post is one of those.)
The 3rd type is, IMO, useless, at best, IMO - that's the type in which the writer says or implies s/he knows exactly what you need to do. Remember - you know yourself and your situation better than anyone here does, and you;re the only one who leads your life. So take directives with grains of salt.
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Remember also that human beings are healing machines. You've been dealt a terrible hand. You've lost a lot, and you can't retrieve what you've lost.
But you can recover. You can survive. You can thrive.
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There's a link to the 'Healing Library' in the yellow box in the upper left of SI pages. I urge you to explore it.
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If you like to read, here's a few suggestions:
Great Posts for Newbies to Read
http://www.survivinginfidelity.com/forums.asp?tid=361740
Boundaries and Consequences 101 for all new BS
http://www.survivinginfidelity.com/forums.asp?tid=385631
Before You Say Reconcile...
http://www.survivinginfidelity.com/forums.asp?tid=406548
Before you say reconcile...Recover!
http://www.survivinginfidelity.com/forums.asp?tid=561390
For the newly betrayed
http://www.survivinginfidelity.com/forums.asp?tid=535178
For the foggy, unremorseful, cake eaters:
20/20 Hindsight: What I should have done when I J F O
http://www.survivinginfidelity.com/forums.asp?tid=446349
Codependency in the Marriage: A BS’s common mistake
http://www.survivinginfidelity.com/forums.asp?tid=408443
My 10,000th post - You Are Going To Be Ok
http://www.survivinginfidelity.com/forums.asp?tid=502703
Another Great Post for Newbies to read
http://www.survivinginfidelity.com/forums.asp?tid=532395