As a teenager:

Boy: "Be nice and have sex with me, it would make me so happy, I want it so much, all my friends are doing it."

Me: "Why not I guess, I do want to make you happy and it's not like it's a big deal. It's not harming anyone!"

Today:

Men: "Women are harming men by not remaining virgins until marriage! Slutty women and their unbridled sexuality! They are so selfish and entitled! Women are disgusting!"

Me: "What?"

So you decide to be generous to men and then men accuse you of being self-serving. You let men use you and then you're accused of using men. It's a puzzle.