I'm sorry for what you're going through. It must be difficult to remain in the same house, and certainly it would be hard to pretend to people that nothing out-of-the-ordinary is happening--if that's what your W expects you to do.
It might have been easier if she'd just moved in with OM and started enjoying his company full-throttle (throttle's a good word). She might already be home by now.
I know you're angry and discouraged. I'm mad at your M counselor: she sounds like she ought to be forced, in the afterlife, to walk a coule of billion miles in the shoes of all the people whose lives she's ruined.
