Late to this, I am sure I'm going to say what everyone else has.
Yes it absolutely IS that bad.
It's not just even about being worried (he should have been) and wanting to make sure you were ok and bring you home under supervision (he should have) so that you didn't, on top of a hospital stay, have to take a train, possibly get delayed (any normal person would have thought like this) and even, possibly, fainted or fallen asleep or had a delayed reaction which would have been terrible if you were on public transport miles from home at night.
It isn't even about all those blindingly obvious elements which would have ANYONE else (even a neighbour, a friend fgs!) going OMG and jumping in the car.
You can leave ALL that aside, say now you were some hugely independent person who he knew would hate a fuss, you could JUST POSSIBLY excuse him not coming for you. Just.
But. Your ten year old daughter was the only other person with you.
So not only was he utterly uncaring towards you, but he was happy (or didn't even think) to leave his ten year old, possibly upset from what she'd already seen and had to deal with, being in your care for a late night journey home on a train when you could possibly be shaky, feeling ill, not quite with it, her pretty much in the role of caring for you and the only person to raise an alarm if you'd had a reaction on the train. Happy to have a ten year old do that journey too late at night rather than have her dad come and get her.
That is utterly astonishing and I hope you detail his utter lack of responsibility towards your poor daughter in your divorce petition for unreasonable behaviour.
I am SO glad you are getting your details together and getting rid of this utterly shitty excuse for a 'partner'. Or a 'dad'.
I hope you take real care over contact, and don't be surprised if your lovely, capable DD doesn't take long to lose interest in seeing him. I would be surprised if she gets anything from him, emotionally, already.
Good luck.