I read Models by Mark Manson. He talks about opening up and being vulnerable to a woman, by telling her stories in your life of vulnerability, actually helps a woman become attracted to you.

I am facing a dilema here, as I have been hardening myself and becoming more resilient to telling women how i am feeling, as that's what the redpill recommends.

Should i be vulnerable with women, or keep my vulnerability to myself? Assuming my end goal is to get women attracted to me.