Warning: Spoilers for Handle With Care and My Sister’s Keeper by Jodi Picoult (I give away the ending).
The ending of a story can form your whole opinion on the story. Some endings can make you question why you read the book in the first place; others make you itch for the sequel if it’s a series.
When I’m about two-thirds of the way through a book, I try to predict the ending. With the exception of Jodi Picoult books, I’m usually right about an ending.
Happy endings are better than sad endings—but only if I like the character; otherwise, I kinda don’t really care—but some book endings are both happy and sad. At the end of My Sister’s Keeper, Anna died but Kate lived.
Sometimes tragic endings are a message that something in a character’s live needs to change—like in Handle With Care where Willow died. To me, Willow died because Charlotte needed to pay more attention to Amelia. That was the message.
For books I really care about, I try to “save” the ending (but I only do this if I didn’t like the author’s ending). This means I rewrite the ending to the book, but I write the way I felt it should’ve been written originally.