Well if you are not going to be around for scraps of her love, you need to tell and show her that, it seems obvious that you are doing things that send signals that you are.
Start detaching and she will get the message loud and clear. Learn to detach with LOVE. Learn to move forward and get out of those friendly conversations. It's also clear that she doesn't respect you, if she wears the OM presents around you.
Start by making yourself sparse when she's around and it's her time with the children.
And to answer your questions about her getting what she's going to lose: NO she doesn't get it, she in a very selfish state and an fantasy. She's wanting what she wants and guess what she's getting it at the moment. Stop feeding your side of her fantasy and let her start to feel what a life without JC is really going to feel like.
Onward and forward
Joejoe
M:37 W:37 T:11 M:10 S17, S13, S10, S4 BD:06/28/17 OM confirmed 07/20/17 Recon the M 10/29/17 Working hard:2gether
Onward and forward
This process is not a sprint it's a marathon! Patience, Patience, Patience.