More time and patience required. Let her come to you to discuss her appointment. Given the length of your M, she will likely inform you.
A agree with SA, do not initiate contact, but be there if she should want to talk.
Don't go dark, just a little dim.
BE THERE for your kids, she may not be able to be around them much these days.
I don't think you should move away from your kids... You already said you need to be around them.
(((((more hugs)))))....
Magic
M:46 H:49 T:20yrs myD:22 H distant summer/12 H sleeping in b'ment: Nov/12 BD: Dec 2/12 asked me begin to move end of Jan/13 moved Jan 7/13 (left my stuff) "agreed" to "working on r" Mar 3/13(lipservice!)