Hello, I feel for you, but I can relate to your wifes behaviour, not that I condone it one bit.
All my life I have suffered with body issues, and lapped up male attention. I lost a man I truly loved with my behaviour. When I was much younger, I was in a ltr and set to be married. He introduced me to his local pub, and I was soon accepted by the locals. I would flirt with many of the locals. Allowed semi-inappropriate touching. I knew it bothered my fiance, but brushed it off as harmless fun. There was this one guy....
He and fiance were not friends at all, and this guy had made it clear he had a thing for me. Not once did I intend to cheat, and I didn't, but my behaviour led to some arguments, in which I would accuse my fiance as not trusting me. And at the time I really did believe what I said, and I got angry with him.
As time went on, the flirting and groping that I allowed continued. My fiance put up with it. I eventually got a job behind the bar. One night while my fiance was at home, I was offered money to serve the guys beers while topless. It was very late and after hours. I accepted money off this man to do it. And 2 of the guys recorded me doing it on their phones.
Another night after my shift, I left the pub with this man to share a cab back home. It was 2am when we left. I got back home at 5am. I went back to his place. The guy tried it on with me, but I pushed him away and told him it was drinks only. He kept trying and groping, but I never let him. Though, I will confess I enjoyed the attention.
There are a few more things I could say but won't. Eventually my fiance left me. At the time I didn't see what I did wrong. It took many years of self reflection. And its only now in life I feel remorse for how I behaved, and take responsibility for driving my fiance away. At the time though, I kept throwing back his arguments of not respecting him, into him not trusting me. I didn't cheat on him. But I behaved like I did or would. It was not acceptable. Ironically, if another girl so much as talked to him, I grilled him for hours, even though his behaviour was very respectful.
This sounds like your wife. How I used to be. Though your wife is older than I, but it took a big loss in my life to realise what I had done. I have no easy answers for you. If your wife is like what I used to be, she will see nothing wrong with her behaviour. If you behaved like her, she will not relate it to hers at all, but will probably come down hard on you. If you threaten to leave, that might not change things. I only learned once I lost him. And by the time I realised (took 2 years) he had moved on and is now married to another woman. I am also with someone new, and will never behave like that again.
A very harsh opinion here of options. Stay with her and put up with it. She most likely will never physically cheat. Or walk away for good. A proper seperation and time is most likely is what is required for her to see what she has done.
Everyone deserves better than to be treated this way hun.