Why is it always when I open up and share my vulnerable side, people just ghost on me?

I have always been judged by people for being so reserved and introverted but when I open up they just ghost or use the knowledge against me. How can I build a healthy relationship with people if I can't trust them with the things that i share? Thoughts?
Why is it always when I open up and share my vulnerable side, people just ghost on me?
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