@jacobiansimmons,
Distressing, I'm sure.
I don't see any clear indications from what you wrote that she was going to be trouble you could use to avoid similar situations.
It sounds like a standard case of buyer's remorse after you got her off, then you spent the night and did nothing to re-seduce her. She had a full night for that buyer's remorse to blossom into outright resentment.
A lot of Western women (especially American women) do not have a good vocabulary to verbalize their emotions today. The ones that have been heavily inculcated in feminist philosophy will turn to consent/violation charges to try to explain how they feel.
If you watch an old movie, or if you travel outside the feminist bubble, you will see/experience women get similarly upset, but they'll say things like, "That was NOT what I expected!" or "That's NOT how you treat a lady!" or "Really -- I am not that kind of girl!"
The emotion behind it is exactly the same. It's just that in the Anglosphere it's weaponized and potentially ruinous to a man's career/reputation/freedom.
The non-weaponized version is easier for a man to react to naturally, because he gets the woman's emotion, without it being strapped to a threat. In the West, men are getting hit with an emotion that is strapped to a threat. The woman might not even intend the threat when she says it, but the man is perceiving it that way.
The best way to react to this sort of thing is to treat the underlying emotion while outwardly ignoring the threat. e.g., "All right, well talk to me. Where did things switch from 'good' to 'not what I wanted' for you?" Focus on getting her to remember she was having a good time. Evoke those emotions, then if possible get her to explain why she kept going or why she didn't stop you when you were doing something that she participated in (the aim is to rewrite some of the historical rewriting she's done, where things she enjoyed last night became things she felt ashamed to enjoy, then later things she decided she did
not enjoy and was coerced into, and get her to start removing that false narrative she has in her head and coming back closer to something like the real chain of events). Pace her reality and move back into a seductive tone. Then re-seduce her if possible, having her affirm all the while that she is enjoying things as you go.
Also, just to add, my personal best practices -- no orgasms for women until your penis is inside them.
You can get her all hot and bothered with your finger or your tongue... but until your penis is in her, she can't cum.
Notice she had no problem to consenting to you fingering her to orgasm. She is also not claiming a problem putting her hand on your penis before she climaxed.
But her finishing you off
after she finished -- that's where she says the problem started.
Chase's rule of "No orgasms for women until your dick's in them" strikes again
Chase