Not all Hen do's are a vulgar fest.
Low class women may naturally gravitate to low class conversation, but many educated intelligent women can gather together, have a great evening without resorting to speaking about sex and boring others about their sex life.
There really is more to life than sex, even in your 20's.
Some women have a broader range of conversation in a world where so much is going on.
They don't have to impose such a dull topic and bore the arse off others with their need to be vulgar and out do each other with banter 🙄.
"Banter" as a word fits right in with such inane conversation, and the race to the bottom that some like to participate in
I certainly wouldn't attend my daughters Hen, but if I did I have confidence in her not to make a show of herself by being so rude and disrespectful to me.
To my mind her dismissing your upset makes it so much worse.
OP, I think your relationship with her need some firm boundaries.
There is no way I would tolerate such behaviour.
I heard my parents having sex, never mentioned it. Why would I?
Your daughter invaded the privacy of your room and is proud of it?
I don't get her pfide in having invaded your privacy.
So what if you have a dildo, I do.
Absolutely no shame about it.
I still wouldn't be impressed with any of my children rooting around in my room.
Thankfully I think they knew better.
Using your divorce to embarrass you?
She's a piece of work.
I think it is very reasonable to have a very frank conversation with her and let her know that you cannot change what she did, of her refusal to own it, and accept your disappointment and her.
However, she doesn't get to control the fact that you were very disappointed in her and remain so.
Own your feelings OP.
So many women live lives of not doing so.