H4L, I guess DBing comes down to preparing for the outcome that we don't want (D), while leaving the door open to reconciliation. Kalni is giving you excellent advice, as usual.
What I hope that you'll be able to see is that the only good choices for you right now are ones that are good for either outcome. I am doing some hardcore work on my R with H right now, but I can justify it as an investment in coparenting since that will continue to be one of the most important Rs of my life, forever.
^^ exactly ^^
Hope, you are strong too! You don't feel it right now, but you are.