I went too far this time and there is no way back.
This is a common thing for them to say.
Foregive yourself for what ever transgression you made and also know that you could have stood on your head and spit out money and she would still have likely wanted a divorce at some point.
Time now to really become the best CROFTON you can be and the BEST DAD possible.
I would not have advised you to move out but that sounds like it might be too late.
DB'ing is counter intuitive, nothing you say is going to bring her back. Speak with ACTIONS not WORDS and - let her go.
LOVE is a CHOICE and until she decides she wants to make that CHOICE you can not force her to do that.