bjw,
I'm sensing a disconnect within your post and I hope you can help me understand.
First, I understand and would feel the same way you do if I got a phone call like that from my EQ president.
Here's your other thread on a related matter for others to reference when posting:
Problems at ward/EQ situation
I don't understand why you think there would be any disciplinary proceeding or take your temple recommend when those things only occur with worthiness issues. Not teaching an EQ lesson doesn't count as a "worthiness" issue.
Please distinquish between the "Church" (the entire church) and your local "Ward/Branch" in your writing. There is a BIG difference and will help you clarify your situation even better in your own mind.
Forgetting the people in your ward/branch, what are you having doubts about?
BTW, there's a difference between "leaving" and just "taking a break". I would suggest that you just take a break from your ward/branch and attend another service within the stake. A change of people and scenery can make a world of difference.
I've done this many times myself. I've taken breaks while I try to just maintain my sanity. I treasure the gospel and I'll never LEAVE the Church. But sometimes, it just makes sense to let people know that you need a break - and you do that by not going for a while.
You can attend your ward for sacrament only, or another ward for sacrament only. But everything else, you just don't need the DRAMA right now.