This is moot. She wants a divorce. How you feel about divorce (which is exactly how I feel/felt about it) is beside the point now because we live in a country in which one is free to divorce if he/she chooses.
Is the point that you want us to understand how hard it is? I've told you, I truly contemplated killing myself. I was absolutely devastated, depressed, arguing my case with those around me as to why it was horrible and not acceptable.
But here I am. Here we are.
This conversation should be IMO about the reality of what is happening, how you can best handle it and be okay. You will need to really breathe and work on your perception of what is happening.