Dating
By the end of the first year, you're in a relationship you wouldn't have agreed to at the start. The details are all ones you know. You've processed each of them. None of them, individually, seemed like a reason to leave. But if someone had handed you the full list on the first date, you would have passed.
The information was always the same. Only the order changed.
The game
She has private information about herself that affects how attractive she is as a partner. Some of it is neutral. Some of it is unflattering. She can disclose it all at once, or she can sequence it.
Disclosing everything upfront costs her. Some people will walk before getting to know her. Sequencing it is better. Each disclosure comes after the relationship has some weight behind it. The previous piece has been processed and accepted, which makes the next one feel incremental rather than alarming. By the time the full picture is assembled, you have months invested, feelings established, and a life that has started to incorporate hers.
The payoffs are clear. Early disclosure maximizes her risk of rejection. Gradual disclosure minimizes it.
The equilibrium
This is the stable pattern because it works. Relationships where everything comes out upfront are riskier for the person with more to disclose. So information gets managed, not necessarily through conscious strategy, but through the natural reluctance to say the hard thing before it needs to be said.
From your side, each piece feels like honesty. She told you. That counts for something. The full picture was never available when it would have changed your decision.
Dominated strategies
Waiting for the picture to complete itself is the dominated strategy. The sequence unfolds so that the right moment to walk never quite arrives.
The better move is to make the picture complete yourself, early. Not to interrogate someone on a first date, but to notice when disclosures keep arriving and ask directly whether there's more. Most people will tell you if you ask. The slow reveal depends on you not asking.