Your W should read up on SMART. Her M should be a T. Anyway...
Sorry to hear about W's plans. I know the feeling. Such hurt and sadness these situations bring everyone involved. Hopefully being aware of it will help you prepare and manage your emotions which you said you've been able to keep in check so good for you.
Glad to hear you're going to retain an L. You do not have to share any other financial information with W until the legal process plays out, so maybe the retirement plan info doesn't hurt to share and will help keep things less antagonistic, but I wouldn't just hand over any information she requests. Remember it's a business negotiation and knowledge equals power.
Not sure the financial implications or your W's perspective but because you have kids if I were you I'd keep the family house if you can swing it. If you've been there awhile it'll be there home and they'll have to "visit mommys". Maybe just a mindset thing, but you'll be the default home base.
Great job on the 1/2 marathon, GAL, and reading. Keep it up.
No need to feel dumb for taking long to post - I often respond so quickly on others' threads but let my own build up - just know we're here to help.
Me:39 Ex-W:37 M:7 T: 9 S:6 D:3 BD/IHS/Confirm EA/PA: Feb '20 OM1 affair ends: May '20 W/OM2 & moves out: June-July '20 W files for D: Jul20 OM2 confirmed: 9/2020 Divorced: May '21