I'm currently re-reading the Twilight saga after 10 years and honestly, I had completely forgotten about the third book because it's just so damn boring! Back then I gave it a 6/10 and... I have questions for my past self.

Edward just had such a creep factor hanging over him in the first half of the book, not letting Bella visit Jacob and going to the extremes of breaking her car and bribing his sister into 'kidnapping' her. Bella even said at some point that she felt like he was too controlling and borderline psychotic, yet she let him do it because she loved him. Stockholm syndrome, anyone? 
He did turn out okay again in the end but speaking of creep factor: Jacob picked up right where Edward had left off. Have you heard of the word NO? You can't just go around kissing people against their will, and everything that happened after is just not okay. Not to mention: Bella's dad, an actual cop, cheered on his behavior? Just... what the heck?
The worst development was Bella though. First, she agrees to marriage and starts begging for the D. Then she begs Jacob to kiss her and suddenly is smitten with him, only to break his heart after. She pisses me off, claiming to want Edward but then rejecting marriage like it's the worst thing that could happen to her. Make up your mind, kid!

The sad part about this book is the realization that the fun, quirky relationship Edward and Bella seemed to have in the first book is gone and any potential this series may have had, went with it. I feel like this book was a compilation of Stephenie's notes on how to say 'I'll love you forever' in a hundred dramatic ways, combined with Edward's weird behavior, Bella's selfishness and Jacob being a lovestruck puppy. A proper storyline? We don't know her. The amount of pages could've been cut in half if she just got to the damn point.

Anyway... I had a hard time getting through this one and just simply did NOT want to read anymore. At this point I just want the series to be over with. 2/10 for this one.