I finally read the book. A Sally Rooney book. And I can see why people hype her works up and this book. I found the lack of quotation marks an interesting stylistic choice, but there are some parts where you can easily trip up on what is dialogue and who is speaking.  

Similarly, Rooney uses commas extremely sparingly, especially when they are needed. It's not to say she DOESN'T use commas- because she does- but there needs to be more. I sometimes find myself having to reread some parts or retrace to the beginning of the sentence to make out where the pauses (commas!) are supposed to be.

Love the philosophical commentary! I can relate to those parts.