A lot of the post sounded similar to my life (St. Bernard) and situation but BB not being focused on the kids as much. I am not as far along the GAL road as you or have a SSM where it has been years of no nookie. Months, yes.
FYI, lots of St Bernard’s spend too much time working and getting an education. Almost every guy I know that is D or has a troubled M, played his St Bernard too seriously.
WTG on the GAL and the professional engineer license. I need an experienced pocket protector so if you decide to sell your old one, put it on eBay and I will bid on it.