Do you have a coach Thorn? It must be very stressful to consider whether to do the right thing by DB method, and I know how paralysing it is to fear making a mistake.
Having recently read the book, I'm pretty certain you do LRT until you get clear enough signs that partner wants to work things out. Book is light on the topic, but obviously, successful LRT ends at some point - it's the whole idea.
Perhaps it's time to note down what the specific interactions are, and ask coach/vets to give feedback on whether they are the early signs that your W wants to reconcile? It's a good way to get the max out of the time you invest in this board IMO.
M:37 W:38 No kids Together since 2006, Married since 2010 EA discovered 06/07/2014 W moved out 06/08/2014