cskone - I'm not one of the vets and while perhaps your W is showing many of the signs I've read about to indicate a MLC it may not be the case here. It may be that she just got wrapped up in her work / the people and lifestyle there. It almost sounds like she's in advertising with how her work and work-life was progressing. That's a tough, high stress racket.
Depression is one of the key indicators that I've read about that goes along with a MLC. I'm not reading any indication of that in her case. But then it's difficult for me as a random person on the internet to really provide much insight into your situation.
The key thing that I'm reading here though is that you need to take care of yourself. Your W is on her own journey with an uncertain destination. You'll need to grieve the loss of your old MR and start rebuilding yourself. Are there some things you can let slide around the house to make some more time to get out with your old friends? To me it sounds like you are still running at a million miles an hour but feeling like you're going nowhere. Could you maybe take a few days or a week and just go away somewhere either by yourself or with your NG?
You'll get through this but first you need to slow down, take a good hard look at the man in the mirror and decide if you like that person. If you don't, then you'll know where to start.
Good luck!
On BD H52, W50 T27, M26 S21, D23 BD-9-Mar-16 D-15-Jan-18 Final-19-Apr-18 I am a storyteller. The story may do you no good. But a story is never for the listener. It is always for the one who tells