I agree with most what has been written.
OP, get some respect for yourself.
Self respect resonates.
Sounds like you have all the evidence you need.
If you want to save your marriage (It's your circus and Monkeys, and you know what you want.) The element of surprise and shock and awe are now your best tools.
Have her served with divorce paperwork quickly and unexpectedly.
At that point, you will know what you have.
If she is truly remorseful and wants to work on your marriage and keep your family intact, she will need to do the work to fix her malfunctions and restore trust.
What she needs to do is on this forum and is repeated 20x a day. Don't have the time to repeat all of it right now.
Get a copy of this book:
As an infidelity specialist for 23 years, therapist Lin…
www.goodreads.com
You need to read it and give it to her to read if there is anything to save. It is a good start for the work that will be required.
Just go for the jugular. No point messing around. If her heart isn't into being with you, there is no point going through the pain, drama, and gymnastics. Save all this for you and the kids.
I'm not necessarily saying don't forgive her. That's your decision.
However, determine if there is a basis that merits it, and make her work for it.