Former WH, now LBS Please Help, close to Give Up

[betheoa]

Please someone to write me. I am angry WW talk to her GF about how will go out with OM. WW insist they are just friends but talk obout him like school girl.
I want to insist NC, but this is something will happened eventually.
I am not spouse to know.
Should I behave if nothing to know and wait or ask her to open her FB and confront. ASK her NC or I am living. ....
Do not know should I wait or act.

There is not disrespect in front of me.

Thanks