What does self-repression look like? To be honest I'm not quite familiar with it and couldn't find a concrete definition when I looked it up. But since you mentioned it, her mother and sister are quite extroverted, while she is more shy and introverted. Sometimes she has no problem saying what she thinks on her mind, sometimes she will like to be alone and journal, let time pass if theres been an argument. But she ranks low on neuroticism, obviously not completely because after all she is a female.
When it comes to psychology there's no such thing as clear positives and negatives, as far as I'm concerned. Like the trees in a forest we all are shaped differently according to the circumstances of our development, and like all the animals we grow and develop into different niches. To apply too much judgement or predictive effects to individual facets of someone's psyche is a bit of a fool's errand.
What I have learned about people is that you can typically trust someone who fully occupies their niche, whether that niche is usually judged as good or bad. But what you cannot trust is someone who is out of their niche and psychologically impeded from returning to it. Not because they are morally worse people, but because they are unstable, because they are constantly compelled to make the correction to re-obtain their niche against resistance, and such corrections can have unforeseen consequences.
When I say 'niche', I mean that each person has a particular kind of position in life - especially in terms of their relationships with others, as well as the way they express themselves as an individual - that gives them an internal sense of stability and reinforcement of their identity. When they are unable to obtain that position for whatever reason - often some anxiety or fear - they can become self-repressed as a means of trying to force themselves to fit permanently into a different position or niche. But while they may consciously try to idealize their current position, their nature is never satisfied, and becomes drawn toward or even infatuated with symbols of the niche they are really supposed to occupy.
In my opinion, if you want a stable relationship, the best thing is to find a girl who is in her niche. Who has developed unimpeded according to both her fundamental character that she was born with, and the most unchanging aspects of her developmental environment. This tends to be a girl who is very stable, trusting and trustworthy, and with a good perspective on risk and reward.
I don't know virtually anything about your girlfriend except what you've mentioned here, but I was struck by the idea of a rich, pretty 20 year old girl wanting to become a housewife to a guy she was financially supporting. But as it turns out you are not an ordinary dude. It seems likely that you, as an up and coming fighter, represent something very fulfilling to her that she isn't able to find in her life anywhere else - and even perhaps a rebellion from her normal existence. Perhaps she has missed out on some things her sisters did not, and in you she has found a new identity. She is young, and no doubt still finding her niche. Maybe she will find it in you.
We are all as individuals shaped and reshaped forcefully by life, and finding someone who has avoided all of the traumas and wrong turns is not a very worthwhile goal in my book - even if it were possible. But there is always a risk in the tension within someone who has strayed too far from their path, and rebellions will often find a new target. But there's also a lot of meaning in it too. Somehow in this mix we must find someone who means a lot to us, and who we can also trust.
As for her parents I've met them a couple times since they came to visit our city. We've been out for dinner together with the whole family at a restaurant and they were kind and respectable. They seem to support it but I've only known her for 6 months, so it's too early for them to get involved a great deal, and we don't see them as often as a normal family living in the same city.
I don't have firsthand relationship experience with very wealthy girls, but I know some guys who have. And it's my understanding that their parents tend to be pretty difficult to deal with and deeply involve themselves in their daughters' lives. That can also very much play into the way a girl conducts herself in a relationship, both in opposition and in cooperation with them, and can cause a conflict of authority in her mind.
To add more context: I'm also 27 and a professional fighter. So while not being super financially rich, I consciously put myself in a position where I would take a hit financially to be able to train more to focus on my goals. Hence why she likes the idea of supporting me now in order to be a wife later.
However, you've made me think about my relationship with her a little more and there's certainly some red flags that I need help with, which I'll make a separate post for.
I'll reiterate it's not my objective to make you paranoid. When I evaluate a girl for a long term relationship, I simply try to get a sense of how many pieces of her life are in the wrong place, and how her relationship with me rearranges those pieces. Sometimes there are too many pieces out of place, and it's very hard to see how they will be arranged in future, and those relationships tend to be very unstable and unpredictable. But almost everyone has a few pieces out of place, it's just a question of proportion.
