The hating game

This book just left me unsatisfied.

In the beginning, the main character Lucy really annoyed me, she acted like a teenager and was just really immature. After the first part I eventually did get into it, I especially enjoyed the dialogue and the dynamic between Lucy and Joshua. There where several cute moments, and some tropes that I had fun reading about.
But after I finished it, I thought to myself, this isn't the end right? There has to be more. I didn't think this because I was sad that the story ended or that I wanted more of these characters. No, it was because the conflict in the ending was very week and practically non-existent. Call me dramatic but I really did want to see more drama and conflict, also I would have appreciated to dive deeper into Lucy's and especially Josh's past. The ending was in my opinion rushed, anticlimactic and unsatisfying.