My answer is "the lack of a safe space and person for us to actually do so."

Many women cry about the fact that men don't open up while the same women will go spread it or beat you down or take advantage of you based on your vulnerability

So my answer is that the women themselves are the problem here to some extent

"Why don't you open up to me so I can go and tell my friends all about it and also later down the line use it to make you feel like shit?"

(This question was inspired by an argument in a response to a comment. Feel free to go check it out from my profile, folks)