I would say God's plan is always good. Pain or not
I think you should take that breath and then go back and look at what you wrote.
You do not owe her an explanation nor a conversation about your actions. If you give her one it is your choice..no problem either way. If she wants one, perhaps it is time she asks and doesn't try to guilt you into it? (that's what I read in that but could be wrong. Might just be an old pattern she is used to)
As snodderly mentioned, whatever happens next will be new. The old marriage is dead. The new relationship is being forged for better or not. So relax and breathe and get perspective.
Random questions:
What if this was a new woman in your life? Have you fixed the issues with you yet? Are you ready for a relationship?
Just asking...
Choose wisely and think long term. Friendship might be a good start...
AJ
"Our lives begin to end the day we become silent about things that matter" MLK Put the glass down... "Yesterday I was clever so I wanted to change the world Today I am wise, so I am changing myself."