A Long Way Down 3

After finishing the book I am still left with so many questions. I think that a lot more should have happened at the end. It's almost like they ended up right back where they started, on the roof. Except now they had a much better understanding of things. Each one of them realized that life was to precious to end so quickly and everything gets better eventually. I was just hoping to find out a little bit more about the characters, if Martin and Penny were together, if Jess's sister Jen ever came back, if JJ got a good job or went back to school, and if Maureen was happy. But it just ended with them being on the roof where everything started in the first place.