I think that we are missing more context here. This sounds like a comfort test. She's afraid of losing you. If this is the case, what are you using amused mastery for and what do you mean by holding frame? If you're holding frame just to "look alpha", you've missed the point. A comfort test needs reassurance, not something stoic.

Let's address what you wrote: Did you tell this chick you regret having sex with her?

If you can't understand why she's butthurt and feels awful, I don't know if we can help you bro. That probably the most autistic and uncalibrated thing you could ever say.

"I regret having sex with you" should only be uttered if you're dead set in nexting a girl. If that is why she's crying and you can't understand that, you have some bigger problems you must address.

You told her you regret having sex with her?! Unless you're breaking up with her I think that is the stupidest thing you can say, you're just messing with her head and she's probably broken now. How do you tell someone you consider to be "LTR" worthy that you regret sex with her, are you planning to not fuck her until marriage or something.

Jeez man,you messed up real bad with that one. You gotta give her some comfort and reassure her that you're feeling good with the relationship and AFTER some time has passed you can tell her about becoming a LTR and getting closer. keep your cool and don't say destructive shit like that again, actually care for her

[first paragraph]

Read the following books: "No More Mr. NiceGuy" by Dr. Robert Glover and "When I Say No I Feel Guilty" by Dr. Manuel Smith.

An important lesson you get from both books is that everyone has the right to feel what they feel, and that their feelings aren't your responsibility.

[second paragraph]

Dude, wtf? Like the others already said: you never tell a woman you regret having sex with her unless you're just trying to hurt her feelings mid-breakup (and even then, it's a pretty stupid thing to say).

Also, you don't even know what frame is. This woman is already in your frame, and she's scared you're breaking up with her.

From Roissy's/ Heartiste's Sixteen Commandments of Poon we have:

VIII. Say you’re sorry only when absolutely necessary

Do not say you’re sorry for every wrong thing you do. It is a posture of submission that no man should reflexively adopt, no matter how alpha he is. Apologizing increases the demand for more apologies. She will come to expect your contrition, like a cat expects its meal at a set time each day. And then your value will lower in her eyes. Instead, if you have done something wrong, you should acknowledge your guilt in a glancing way without resorting to the actual words “I’m sorry.” Pull the Bill Clinton maneuver and say “Mistakes were made” or tell her you “feel bad” about what you did. You are granted two freebie “I’m sorry”s for the life of your relationship; use them wisely.

This is one of those two. I advise apologizing to her if you want her to stick around.

I don't know, but just sometimes you said you regret having sex with me

It's always the retards with 'chad' or 'alpha' in their username that post the biggest cringe..

Guilt, shame and honor are the biggest manipulation tactics women use to get things. You need to be immune to that shit if you want success in life.

What do you want in your frame? If you want a happy woman don't make her insecure, reinforce what makes her secure.

Presumably you like railing her? (If not you are wasting your time). So reinforce when she is good fun in bed. Tell her you enjoy her body and what she does with it.

At the moment you are putting regret into your frame and getting it back. It wouldn't hurt to know why you did this. Was it a sort of test of your chaddishness that you could say she was not worth a fuck and get away with it?