You will NOT benefit from being vulnerable with a woman.
However, you can fake vulnerability for the purpose of lowering her defenses. But internally you must be aloof.
Once you care more about the relationship than the woman, you lose the game.
The Poon King lad is spot on here. If you were to write that down and follow it, you wouldn't do so bad at
all. What you have to remember is that this is a game (or a war). The problem here is that if you were to be
genuinely "vulnerable" what you're doing is giving her amunition to use against you in the futuree.
....and believe me she will use it against you in the future. yes that girl that you "trust so much". yes that girl
that you have a "connection" with. she will fvck you hard in the ass with a strapon. and that strapon that will
be banging your ass will be the "vulnerable" secret you gave to her in the sanctuary of your bed..
Like PK says, use this to your advantage, throw her a red herring.....throw her a vulnerability that's not true (or at least that's true but she cannot use it against you in the future.....eg I fear my parents dying (so does she) or I fear speaking in public (so does she)
by the way, I applaud you on reading Robert Greene and trying to better yourself.