This thing also exists among some guys too. Though it's not as much as it is with females..
"They say a problem shared is a problem half solved," but I say a problem shared is a women given to people to use against you anytime, anyday. I'm not
saying it's not good to share your problems, rather, what I'm saying is to know whom you share them with. I always tell one of my female friend - "No be everybody wey laugh with you, like you. No be everybody wey congratulate you, dey happy for your achievement."
The high time you learn to keep even the smallest details to yourself, the better. You'll think you're connecting with them, but the truth is, after that connect, they would use what you told them about yourself, against you.
You're absolutely right.
I learnt that when I got to higher institution. You know, things are fresh I was open minded with everyone. Even though I know the shits they say behind my back I would act like it's nothing.
Until I shared one secret with someone I thought I've found a sister and during our final year I discovered everyone knows about it.
Omo I told myself that will be the first and last anyone will treat me that way.