The Final Episode by Lori Roy
I found this while searching Kindle Unlimited books to read during my free trial and the synopsis caught my attention. I really loved the writing and the way the story was told. I liked that I was never completely sure if I was “watching” slightly fictionalized episodes of the show or truly living what each episode showed from the characters' POVs as it happened. It doesn’t matter either way, but I thought it was an interesting way to think about what each option might have skewed in terms of the truth.
Spoilers ahead...
