M friend, there is a solid plan. Stop listening to others. People here have been where you are. We know better than any mc, or well meaning friends.
Tell her to write a complete timeline.
Base your questions off her timeline, and schedule the polygraph. One question being, is there anything you purposely left out of the timeline.
Set requirements. At minimum..full transparency, NC, complete honesty, therapy. She must drop the anger. She did this,not you. Zero defensiveness.
She has a ton of work to do on herself. She seems to have zero empathy, remorse, or even love towards you. All of this alone,is enough to walk away.
If she fails the polygraph, you must make hard decisions. Are you going to stay with a woman who has no respect for you? Who refuses to tell the truth?
The bh who have the most successful outcome,are the ones who set requirements, boundaries, and refuse to tolerate anymore bullshit.
You need therapy to work on why you're co dependent.
You came here for advice. You're getting it. Take it. Drop MC. Going to MC with a unremorseful WS, who you know is lying, is a waste of money. And only hurts the bs more.
Her stomping around,mad at you that she has to go to work,and you have the day off? That shines a light on how incredibly selfish she is. She has abused you for years. She's a serial cheater. And she's throwing a tantrum like a toddler.
What's to love here? I challenge you on that. You love the woman you want her to be. You love a woman who puts on a mask, to get what she wants.
And...again..as long as she knows she can do,and say,whatever she wants, this will never get better.
And, really,the fact that she allowed one of the OM to fondle her,while they both stared back at you? Most women, even cheaters, would be horrified. There would be no "shock" because they never would have allowed it to happen. Bit she did. And she did it,because she knew at the end of it you would go home with her...and rub her back when she is upset that you're upset over her behavior.
Do you have family nearby? Maybe a separation would help. It would give you time to think.
You need to do the 180 and detach.