Stop torturing yourself, just fuck her or don't.

Copy pasta.

There are a lot of moving parts to your comment, which pretty much cover the spectrum of TRP theory.

Marriage

First, I'm a lawyer; and I view marriage through a legal lens. It's important to distinguish matrimony (the [spiritual] union of two people as a committed couple) and marriage (the enforceable contract governed by the state which transfers legal title to property from one person to another).

In common parlance, marriage = matrimony. In order to demonstrate your love for your partner, you're supposed to have a ceremony that expresses your intent to be bonded with this person forever (or at least, that's what is socially expected). And while you and your significant other go through this matrimonial ceremony, it's also customary to pledge your property and financial assets to each other and promise to financially support the income-weaker between you two, until they die or remarry. Doesn't that sound romantic?

The advice against marriage is business advice. You wouldn't just jump into a business partnership with any yahoo who might embezzle from you and irresponsibly crash your business, but people haphazardly choose to pledge their financial security to their significant other without a second thought. They only sober up when things don't play out happily ever after, and now they're on the hook to comply with a court order to split assets and pay spousal maintenance.

So the TRP advice against marriage isn't synonymous with advice against matrimony; TRP advice against marriage is like a lawyer, CPA, financial advisor, and insurance actuary giving you financial investment advice about how you should be careful about who has access to your valuables.

TRP, in general

Second, at its core, TRP seeks to answer one question: what stimulus do women really respond to? Our culture teaches us that people, both men and women, should behave in a certain way and that relationships should be a certain way. This gives all of us certain expectations for how people should behave and react to us.

But social and cultural values don't always reflect nature. Masturbation may be a sin according to Judeo-Christian ethics and we're all expected to refrain from touching ourselves sexually; but as sexual creatures, boys and girls will always experiment with masturbation, even if they don't talk about it in public.

So what other things might we be expected to do publicly that we naturally do differently without discussing it? What things do people really respond to, especially when it comes to sex and physical attraction? Furthermore, what does it really mean to be in a relationship?

These are the questions TRP seeks to understand the answers to, free from the cultural and social framing we grew up with.

The results seem to be that people are not as pious as one might socially expect. Turns out, women like sex just as much as men (if not more than men). Turns out, fidelity is a wonderful virtue; but the median person doesn't behave virtuously.

So there's a clash between our socially developed expectations and the reality of how people act and the kind of behavior they respond to.

Anger Phase

Many men go through the anger phase as a result of the contrast between their expectations that women should be a certain way and how they really are. These men in the anger phase are hostile toward women because they blame women for their difference from the guy's expectations.

But these men are just angry fools. Eventually, the wise ones of them will grow past their own foolishness and stop being angry at women and learn to accept women for who they are and how they react to things. We can only know truth when we listen without opinion.

TRP Theory

Ultimately, the view is that the median person honestly doesn't want a long term relationship. Well, more specifically, the median person's actions are moreso driven by short term interests rather than long term goals.

While men and women pay lip service to the notion of being in a long term committed relationship, their actions indicate the contrary. Despite the fact that they may appreciate the emotional stability and financial support of a long term relationship, the problem is that those traits are not sexually exciting.

Sex is about excitement. Muscled men are exciting. Passion is exciting. Things that are new are exciting. Things that are old are neither passionate nor exciting.

So it's difficult to maintain a long term, boring, unexciting relationship when we are biologically wired to respond positively to new, passionate, exciting things, especially when sex is in the mix.

TRP on Attraction

You cannot negotiate attraction. Sexual attraction is not the result of a pragmatic chain of logical conclusions. Instead, sexual attraction is a hormonal, chemical response, often almost uncontrollable. At the end of the day, we are all just animals; so we shouldn't be surprised when people behave like animals.

Because sex and sexual attraction is exciting and exciting things have a tendency to drive our short term decision making, people are more likely to follow their hormones rather than their rational, pragmatic logic when it comes to sexual opportunities.

TRP on Women

So it isn't that TRP hates women or thinks women are second class (well, not as a main focus of the subject, at least). It's that TRP is about the reality of what people want, as determined by their actions, not as determined by their words. And it certainly appears that the median man and woman will act on their sexual attraction to other people, even when they are in a "committed" relationship. They will lie about it, they will twist certain truths, they will dodge responsibility, and they will eventually get bored and unfulfilled by the stagnant old relationship and pursue the new and exciting relationship.

This doesn't mean long term relationships are impossible, just statistically improbable because all women, all people, are still human and are still driven by their biological urges. AWALT.

Again, TRP isn't about hating women. TRP is about figuring out what stimulus women really respond to, and how we as men can realistically increase our success with women, mostly in a sexual context, but also to a lesser degree in long term relationships.

TRP on Plate Spinning

Plate spinning is just a practical approach to the transient sexual game between men and women. It's saying, "hey, I didn't make the rules to this game; I just understand how it's played. Chances are good that she [whoever] isn't the kind of girl you want to take home to meet your parents, but you still want to get your dick wet. As the 'relationship' is going to crash eventually, you might as well enjoy the ride while you can. She isn't yours; it's just your turn."

Conclusion

Ultimately, all of this is positive toward relationships between men and women because it's a study of discovering exactly what women want. By giving them exactly what they want, they are the most happy and we receive what we want. Then, by consistently providing the appropriate stimuli, we are potentially better at coaxing a relationship into persisting for lengthier period of time.

The important thing to realize is that a long term relationship is not like a train that can sit idlely on a track and be fine; a relationship is like an airplane that needs constant input in order to stay aloft. TRP recognizes this and also recognizes that sometimes, despite your best efforts, relationships crash. It's just important to learn from your mistakes, figure out how to improve yourself, don't get too hung up on past failures (or hung up on exs), and then don't be afraid to get back in the saddle and do it all again with someone else.

Back to Marriage

On a final note, except for taxes, nearly every legal property right can be covered by some form of contract or estate plan. Marriage is merely an automatic bundle of rights, but you can piecemeal those same rights outside of marriage. Marriage literally is designed at law to provide the bulk of its value after your death. In life, it's almost entirely a liability, a Doom of Damocles. Don't get married.