Trumpet, it sounds like you are coming from a place of strength. Running probably helps a lot, keep it up! It sounds in general as if you are taking great care of yourself.
We live in a great place with so much to offer, don't we. I have created myself a wonderful life here and feel happier than probably ever before in my life.
I have been shocked over the D laws here and how fast things happen for many. Your story is very similar to what I have heard from others in Divorce Care group.
My WH is also not filing for D at this time, and has said he's very comfortable being S. I think he's using me to prevent a M to OW. She wants to get M this year but that's obviously not happening. I have told WH that I can't sign a no-fault settlement - it would be a lie, so if he files, I will reply with an at-fault filing, which is an option in that state. We may remain M for a long time.
When it comes to your worries about OM, it sounds like someone who works in a school should be safe around your children. That would be a huge concern off my mind. I would probably talk to Ex if I were you, and ask her how she intends to tell the kids so they don't find out by chance.
Best of continued luck with Trumpet 2.0. I'll be in the survivor's section, too, even if I'm still M on paper.
M 16 yrs, WH62, P54 3 adult blended kids EA 11/13, BD1 6/14 PA fall 14, BD2 2/15 Piecing 2015, BD3 12/15 Separated 4/16 WH moved OW in 5/16 Divorced 6/15/17