Let us assume that she is also a home and car owner, is attractive, slim and toned, does not smoke or drink, is doing well for herself, is generous, good company and is chaste.

When she meets up with this fairly matched man, he is going to ask "Why do you need me to pay your bills?" He is going to wonder "Does she have a spending problem? or is she actually not all that generous after all, does she just want to take? Why should I go and work just as hard as her only to hand my money over to her to spend on whatever she wants when she can herself pay for her life style from her work?"

"Because vagina" does not cut it as a fair reason.

Of course if she is not a fair match and is a broke girl who has tried a lot of men and can't find what she likes, then she is still someone who wants to take more than she gives, so either way, I think the lady asks too much.

Are women constantly emotionally cheating like this or am I missing something? Yes, plenty are, more than you think.

I think body language based IOIs are very indirect, generic, and a call for male attention, not usually yours specifically, just out of boredom it seems, more than a serious interest in an individual.

This is solely based on MY experience: At my 37 years, my only indicator is actually showing interest more directly. Looking for me,conversations, wanting to spend time with me, making time for my plans invited, always answering my texts (modern phone usage is the spergiest it has ever been though). I rely on that instead of fuck me eyes, looking at me or whatever bullshit they do for attention. All of that is very good for flirting when you have smashed once at least,

Its their way to call for dick/male attention, and they usually get it. But the indicators I mentioned are ways to call for MY dick, and that is what I care about, I have no interest in simping, chatting for more than a couple of weeks without escalating into seeing each other and other stuff.

Yes, at this point you're just lying to yourself so stop this. You've seen those phone swap videos and you know she's behaving just like those cheating females who go into panic mood with asked to change phones, which means she's most likely one of those cheating females. Why didn't she give you the phone when you asked? Why was only 1 Instagram convo out of hundreds of others deleted? You're only lying to yourself because you've been with her for 8 years but the truth can't be hidden forever: she's cheating or at the very least entertaining other men's attention.

Imagine for a moment a long time friend of yours leaves his wallet open on your kitchen counter and you see he only has bills lesser than a $20. Later, you realize you're missing a $20 bill from your room and question him about it. He goes on a rant about why he would never steal from a friend and how dare you accuse him but before he leaves, you catch a glimpse of his wallet again and see a $20 bill when before he only had 1s and 5s. Would you go through these mental gymnastics or conclude that your friend's probably a thief? Why do so many men lose their common sense when dealing with women?

I would break up with her in my mind and date other females. I wouldn't tell her anything so she can still cheat sloppily on her next boyfriend without her improving her stealthy agility. I do not believe that you should confront her because, based on you even asking this question, I highly doubt you have the fortitude to resist her if she surprisingly admits and apologizes. The power dynamic is clearly in her favor.