True CW Not bringing it up at all might come across as passive aggressive. Also I have gotten some info she might not be feeling to well (from SIL and a mutual friend). Don’t want to tip the scales in terms of anger/depression if you get my point.
Also I wouldn’t warn her, just let her know the envelope came and potentially ask if I I should open it for her.
Me: 34 Stbxw: 30 D:5 D:3 Mini bd: May/June 2019 Married: Aug 2019 BD: 6th Dec 2019 OM Confirmed: Feb 2020 March 2020: I filed for D Waiting for D to be finalized and W to move out end of January 2021