It sounds like you are excusing her behaviour though IsThatAHedgehog
Even if you are right about op’s dd feeling that her mother isn’t there for her emotionally, at twenty-four there is absolutely no excuse to express that by going to attack someone, never mind your own mother, and to do that in front of a friend is utterly shocking.
Twenty-four is very old to be behaving this way, even when alcohol is a factor.
I think people are being unfair to op who said that the dd has loving families on both sides and lots of support. What more can you say about a loving relationship? Why then does everyone ignore that and focus on the private education and Putney flat?
Does no one think that being away with your dd and her friend in the first place indicates a degree of emotional closeness?
I hope you are ok this morning op 💐
I don’t know what I would do in your shoes. I think I would pack my bags tbh and knock on your dd’s door and tell her you are leaving. Check her friend is ok and go home. Tell your dd that she is welcome to discuss any grievance she may have about her upbringing with you at any time but only when she is calm and sober and that she owes you an apology. And tell her that if she is in difficulty in any way that you will do what you can to help her because you love her. But you will not tolerate being physically threatened by her.
And I would take this as a sign to step back a bit now op. You can give dc too much. She sounds over indulged and maybe needs to stand on her own two feet for a bit?
Even if I could afford it, I don’t think I would give my child a flat in Putney at twenty-four. It’s a lot. How much say did you have in that decision? Does her dad spoil your dd op?
I think it’s preferable that young people have to strive a bit and live in shared accommodation, and be forced to adapt to others and get the corners knocked off a little. To realise that they don’t know everything about life that there is to know yet.
My DDs are similar ages and they both had their moments of being quite rude and rebellious as teens but they are now living in shared flats and working and continuing to study in low paid situation. They have to buy their clothes from Vinted and shop very carefully for food. Tbh I think it has done them the world of good as they no longer take their upbringing for granted.
Take this as a sign to focus on your own life now op. Be less available, except if your dd has something serious to discuss of course and is sincere about it. 💐