OP HERE - thank you, everyone, for helping me put things into perspective. I took your advice and rode out the week, staying (mostly) away from work and DCUM (which was terrible). I let DH keep my BB, but just checked my emails on my laptop once through the days so I could forward or address anything urgent (always surprised by folks who don't heed an auto reply).
And yesterday, we had an amazing long hike. DH took a selfie of us and when we got home, I saw it, couldn't figure out why it was a picture of us I liked so much. Then it kind of hit me: I look happy and RELAXED.
So now, the reality comes, but I guess I do know that he really loves me and my job, is in fact, killing me. I'll start trying to set boundaries and if that doesn't work, look at moving on, even if it's to something frivolous.
Thanks DCUM for your point blank honesty as usual