Bees,
My WW had a ONS on a business trip. That's all it was. It doesn't matter. The betrayal is truly devastating. You're going to find out very soon just how devastating this is. I feel for you, man. I know and understand what you're going through. I've been there and done that, and hardly three months later I'm still unhinged.
First, I would highly recommend exploring "The Healing Library." Look at the yellow area on the screen up and to your left. Find the "Articles" tab and read a bit.
http://www.survivinginfidelity.com/articles.asp
She told me it was an accident
This was no "accident," this was a choice. Your wife chose to cheat. Do not allow her to blame alcohol, her friends, you or your marriage. There is no justification for infidelity. Say that out loud, repeated it as often as you need to, and then, do all you can to drive this notion into your WW's (wayward wife) head. There is no justification for infidelity. It is NOT an accident.
It made me feel like an emasculated bitch and I'm not I'm a fucking stud!
Her cheating had nothing to do with you! This is not your fault!Nothing you could have done or said before the ONS would have made any difference. Do not blame yourself and by all means do not allow your WW to blame you. There are much deeper issues here than you or your WW realize yet. I'm just starting to realize this myself; that we each have our own shit to deal with. My WW is going to have to figure out what terrible issues she's had for years--indeed, her entire life--that lead her to do something so incredibly self-destructive.
I am going to tell you that the level of insecurity I now feel rivals that of the awkward teenage kid I once was (3 decades ago). This just comes with territory, brother. It sucks to high heaven, but it's an all inclusive package, if you know what I mean.
Part of me wants to tell her husband. But I can't bring myself to do it to the poor bastard. After everything I've gone through I just can't bring that on him and I don't want to be involved in breaking up there home. I love kids too much and I don't ever want to do anything that could hurt a child it would just be too much weight on my soul.
I understand this. I really do. I would never want to hurt anyone like this, ever. Nevertheless, you are not causing this pain. You had nothing to do with this threesome, nothing to do with the choices they made. However, you can choose to be honorable. For me, not doing everything in my power to reach out to the OM's spouse (other man) would make me an accomplice to infidelity; guilt by association. I will not be a party to her infidelity. I did NOT make that choice. I believed then, and still firmly hold the conviction now, that I had a moral obligation to tell everyone directly involved. I've made that effort and I'm damn glad I did it. I simply refuse, now and forever, to condone infidelity, even by omission.
I told my wife I still love her and I feel like I can forgive her
Let the word "forgive" drop from your vocabulary! Three months out from D-day (discovery day) and I'm not even considering forgiveness. Not yet. Not by a long shot. There is far too much to work through, including whether or not I want to remain married to her, before I ever entertain the notion of forgiveness. And just what is it she wants me to forgive? The ONS? The lies she told afterwards? Weeks of blame-shifting? The text messages I had to read when I discovered her infidelity? The pain and anguish I've felt and still feel and will most likely feel tomorrow and next week and years into the future? Rage so intense it scares the shit out of ME?
Don't even worry about whether or not you can forgive her for betraying you in the worst possible way a woman could ever betray a man! Get that out of your head; you've going to feel a lot worse before you begin to feel better.
had pretty hot sex.(I know I'm fucking weird).
Okay. This is a huge issue here. Google and read up on "hysterical bonding." Two days after D-day I had sex with my wife. I didn't do it because I wanted her. I did it simply to prove to myself that I could still driver her to China and back. I did. It felt good to know that this old man still had it in me. Sexual prowess issues dismissed! But it didn't stop there. I felt a truly desperate, almost primal, need to reclaim my woman, like a caveman grunting: "No! Mine!" I was a major hysterical bonder and I'm convinced it really did send the wrong message to my WW. It confused the hell out of her when I should have been holding her feet to the fire.
The real fault in this whole situation falls completely on my wife
100%! Hold on to this truth and don't back down from it. This was not your fault! It will take some time before she really get this; common with WSs (wayward spouses). If she's anything like my wife at all, she will blame-shift, offer excuses and rationalizations, all to avoid taking full responsibility for her actions and the devastation she had done to you, the marriage and your family.
I just can't control how I feel the next minute.
You are in shock!Unfortunately, that shock takes a long, long time to even start to wear off. I'm getting there. Slowly. I've come to accept what happened. So, welcome aboard the rollercoaster, man. It sucks worse than anything I've ever experienced. I have wept one hour and raged the next. It will get better. You will become increasingly more capable to dealing with it; but it's hard. Very hard. For me, it not so much hourly as it is daily. Some days are good and I can relax, feel a little happy... then WHAM! You're going to learn about these triggers over the next few weeks, months... hell even veterans of true reconciliation have trigger years and years later.
Hopefully, you've already realized that the people here on SI know and understand (more or less) what you're going through and what the future holds for you. In just under two months my unhinged ass had written and/or responded to over 300 posts. There is tremendous wisdom here.
Lastly, and this is critically important, IMHO (in my humble opinion). Do not make any major decision for at least a few months. Contacting your lawyer and exploring your options is a good idea and I'd highly suggest you don't tell your wife about this, at least not until you feel you absolutely have to tell her. Make sure you BOTH get tested for STDs as soon as possible. It's humiliating but you have no choice! That's bound to really piss you off, I know.
Keep reading/posting on SI. Take care of yourself as well as you can. Try to eat. Get some exercise and some sleep. You're going to have to pick yourself up by the boot straps and your WW most likely won't lift a finger to help with that for quite a while.
Good luck, Bees.