Arsene: Just getting caught up and I think its awesome that you've started meditation and remain so calm during this. I wouldnt beat myself up too much if I were you over the whole converstaion about D8 seeing OM...you stood up for yourself, maybe not perfectly, but Im pretty sure you handled that better than most would have been able to.
I also think in reading about how she talked to you during that time that she's looking for you to bail her out by fighting back about the divorce. She keeps throwing it up at you and you refuse to take the bait....she's looking for a fight over it and you simply tell her calmly that you dont want a divorce and all of the reasons why and then let her stew in it. Thats is completely awesome if you ask me.....mine hasn't mentioned D yet but when and if she does im going to hope that I can handle it in such a calm and dignified manner.
I think this more than anything is probably throwing her for a real loop and if she really wanted one she would quit threatening and go do it. As it stands she wants you to fight with her about it so she'll feel better about doing it And the thing with the OM is crap....but it will be over in a matter of months if it lasts that long.
Keep your head up....your handling things in an incredibly dignified way and should be proud of the example your being for your D8