Bitterness is a common trait ascribed to women in my family. Women who react to men in a way that does not fully endorse them whether they are right or wrong. To me even the word has become a calling card for misogyny based on how frequently I see it ascribed to women who don’t quietly accept themselves and the children being wronged.
I totally agree. Women are socialised to pander to men from an early age, to be physically appealing whatever the cost, because that is what men value to the most - by and large - and to "understand" that "boys will be boys".
I will never forget a comment I read by a prominent UK magazine editor, who said: "Women always say, 'I wish I was thinner/ more beautiful... They never say 'I wish I was more intelligent'."
I used to live abroad and was called "bitter" by a male colleague once because I told a 24 year old woman at work - who said all her friends were married and engaged, and worried that she wasn't - that she was too young to settle down and should be having fun. I jokingly told her that at her age she should have "one on each arm and another three ringing her up". Disclaimer: I was not advocating cheating but casual, uncommitted dating 
. -Because let's face it, blokes do this.-
Not saying either that all 24 year olds should avoid marriage / motherhood, if that's what they want, but that if they don't, as I didn't, they shouldn't feel pressured by peers/ society.
I was single (late 30s) then and could do what I liked, with whom I liked, with no one to answer to, which seemed to bother people. Said colleagues who disapproved of me were all married and some were having affairs with each other.
It is the same with male and female sexual behaviour. When I were a lass growing up in the working class North, girls didn't want to be branded "easy" or, my favourite term, "a slag". Misogyny par excellence. I sincerely believe that's a form of control over women by men afraid of comparison.
The patriarchy is omnipresent.