Flowers, that's great stuff! Best of luck to you!!
Regarding RetroV, W and I attended this past weekend as well. It went quite well for us, I think W had a real emotional breakthrough and started opening up to emotions she's kept bottled up inside for many years. She's now talking about working on the M and is committed to continuing the RetroV path and the followup sessions.
AM2012, one of the presenting groups in our session had separated 3 times. The H left and moved in with OW in another state and filed for D. He later reconciled with his W and then he did it again- moved out and filed for D. They reconciled again, and he did the exact same thing a 3rd time. This time his W told him that if he went to RetroV with her and still didn't want the M, then she would grant him a D. So he went for one reason- to end his M. But something changed that weekend in him. He stuck with the M. They had MANY ups and downs and in fact didn't go to all the followup sessions. They ended up going back to RetroV a year later and started the process all over again, "we did it the right way that time" is what they said. And they've been more happily married since then they ever were before, and it's been SEVENTEEN YEARS since they took RetroV. So you just never know what may happen. The seeds have been planted with your H, maybe they won't grow, but maybe they will. In the meantime you need to focus on DB'ing, giving your H time and space, and working on GAL for yourself.