To me it's like a portal to another world just closed and you'll never see those characters again, like saying goodbye to some good friends. Of course you can reread the book but it's not the same. Going back to that world is no longer possible...

Thank you!

I heard about that one! Thank you for your recommendation

Actually, no, I haven't read that one. I'll see if it's available in my local library. Thanks a lot!

I already read the book and forgot to put it. You are right, Before the Coffee gets cold is the perfect example of that kind of feeling I'm looking for. But still, thanks for the recommendation!