Been following along but to busy to really post much.
Allow yourself to grieve, if you were not upset about this situation well it would most likely be your W here posting and asking for advice on how to survive your crisis right?
She is doing this D thing fast for 2 reasons, one its like the band-aide... its going to hurt more if you slowly take it off right? Second ... she has been thinking aobut this for a long time, planning it out, this is not a spur of the moment idea. Just know that .... also know that reality and what she has fantasized will be very much 2 different things, this is why we are pushing you to truly DB and trust the process. You will be a better man from all of this if you do the work and either she will wake up later and see that, or she won't ... regardless the end result that YOU can control will be there. Its your choice on what that person looks like ... the time is now to become the best version of you that is possible.