Jax, sounds so much like me and my sitch too. Not that we should be spending much time analyzing Ws (they're on their own journeys), but it sounds a lot like depression is playing a role here. Has your W seen an IC?
I've been so tempted to show DR to my W, but I know it will only backfire.
Question: How has your W reacted to you spending more quality fun time with your Bs? Is that a 180 for you?