Sorry that you are here, Snowback.
As for the wanting to know of the details---you will soon see that this is a very normal response. Many here need to know EVERY SINGLE DETAIL, while others do not or can not handle that much information.
The bottom line, regretfully, is that you are in for a long journey that you did not sign up for. While ultimately you will emerge from this a strong person again, know that (1) it takes time, and (2) it will be with or without your wife.
It is #2 that is often hard to accept.
Stronger08 mentioned no remorse=no reconciliation. That is absolute fact. The two of you may coexist, but you will never have the emotional intimacy/connection that you had in your earlier years. And what you will start to learn...and accept...as time goes on, is that you can't make her do anything that she doesn't want to do. She controls her own destiny, and no matter how much you love her, you can't change her. Please take that as gospel.
But you do control yourself.
As devastated and out of control as you may feel right now, you do control your trajectory from here. Yes, it sucks beyond imagination that you were even put in this situation, but your healing is in your hands right now.
The first thing that you must teach yourself, is that you have to let go of any outcome. You can't "fight for your marriage" and expect any positive results if it is one-sided. Your marriage may not even survive with both parties being fully invested, yet alone just you.
I am unable to shake this feelings of betrayal. First off, she has never expressed remorse.
This is what it is all about right here.
Remorse is a one time realization. And so many newly betrayed members use this word then their spouse is nowhere near the definition of the word. "My wayward spouse is sorry and showing remorse now"....is something that I read every day here---and it couldn't be further from the truth. There is a huge difference between remorse and regret. Once remorse...true remorse...is found, it never leaves. And it can't be hidden. The problem is that we, the betrayed, look so hard and so desperately for remorse, that we mistake it for something else. Because we can't comprehend that our partner would do something so unthinkable to us---so they MUST have been out of their minds...and are now full of remorse.
Believe me, if your wife finds remorse, you will know it. There won't even be a shred of doubt in your mind. But I warn you---for many, it is either a long time coming...or may never occur.
And that, my friend, is what you have to prepare for.
As of right now, she has no remorse. So, believe it...and act accordingly.
Although you are hurting beyond belief right now, ask yourself if you will tolerate this behavior from her forever. If the answer is no, then you need to take action. One of the common pieces of advice is to not do anything rash in the beginning, but many of us used that as an excuse to do little or nothing. And that is not the right way to go about things. Your healing needs to start NOW, and that begins with you standing up for yourself...and not accepting what you are currently receiving in this marriage.
She gave you 9 years of being a good wife? SO FUCKING WHAT?!!! That is a lifetime commitment---you don't get pardoned for prior "good behavior".
Start to emotionally detach from this woman. This is not a form of punishment, it is a method for you to protect yourself, and let you start to heal. You will see things differently from an emotional distance, and will be able to make better personal decisions. If you want to stay in this marriage, you must first learn how to be willing to walk away from it---because if you do not detach, then you will not know how to properly respond to many of her actions.
If she wants to recommit to the marriage...and I mean fully recommit...then let her. Let her prove to you that she wants this marriage as badly as you do. After she can show this, then you can fully engage. She was the one who stepped outside the marriage, so it is she that has to work to do. And if she doesn't want to get to the bottom....I mean the root problems...of why she could do something so despicable, then she will never better herself. And she will behave like this again...or some other inappropriate way...in the future.
Snowback, right now everything that I have just written may seem like a distant pipe dream. I can assure you that I was in no mental state to hear the above when I was freshly betrayed. But that doesn't make it any less true. And even if you are not ready to act today, know that this is your goal---to get to this state of mind. Infidelity sucks like nothing else; we didn't ask for this---yet here we are in the middle of ground zero. It takes time to extract ourselves.
Good luck, friend.