As a middle-aged, logical person who is fairly good at communicating and who knows lasting relationships are not just based on sex, but good communication and shared values, I found the suggestion that it is 'normal' to be damaged and a bit messed up and confused a bit annoying. Lots of people aren't messed up and I don't like the suggestion here and in other books/culture that suggests being messed up is good or you can't really know what's life like without it.
However, it chimed with teenage feelings and took me back. I recognised the popular people who actually liked some unpopular people but didn't socially acknowledge them. I recognised the poor communication of some early adults and misunderstandings and break-ups and lots of people struggling to commit or know what they wanted.
I didn't relate so much to their underlying difficulties - so Marianne's horrible family that gave her low self-worth, or Connel's anxiety (although I could see that is probably quite widespread) but I think the story wouldn't have worked without a backstory to explainnwhybthry behaved as they do.
Are they normal people? Marianne didn't strike me as typical - fortunately most people don't have a family like hers. Are all people damaged? Some are by the age of 18 and actually I think lots fortunately aren't. The older we get, the more of us have been damaged by something in our lives.
So, I actually really enjoyed it as a poignant return to the feelings of young adults, but also seen through my eyes as a more mature adult, who perhaps has a wider view of the world.
The college scenes chimed with me too. At uni, we often did have quite deep conversations and go to some fancy parties. There were a number of people from wealthy backgrounds as well as those from much poorer backgrounds and it was a chance for everyone who'd had a limited life until 18 to see something if how others live. Perhaps it depends on where you went to uni, but that sense of 20 year olds feeling intellectually invincible did resonate with me too.
I'd have loved it as a teenager. I'd have found it terribly romantic. I still kind of do, but I know it's based on a false premiss of sexual attraction being at the heart of everything and therefore it's hollow for me. Would they have still been together at 40. I very much doubt it, in the same way Baby and Jonny wouldn't have been together at 40 after Dirty Dancing. But a turbulent teenage love with lots of angst has its place.