NA Ambiguous endings (sort of like Spiderman No Way Home)

[Rash]

Hey! I just got my heart broken with Spiderman No Way Home's ending, and I immediately came here to get my heart shattered into a million more pieces with a book with a similar type of ending.
For those of you unfamiliar with No Way Home, I'm looking for a book that has an open/ambiguous ending that is extremely bittersweet.

[Kim]

hey ! i don't know if you've read Normal People but, yeah, it has that kind of ending :) I know it's a 'hit or miss', 'hate it or love it' kind of read, so I can't know for sure if you'll like it, but I personally did !

[Rash]

Thanks Kim! I'll check it out:)

[theStorykeeper]

I'm not familiar with No Way Home, but here are the top books that come to mind with ambiguous endings:

Made of Stars
Why Are You So Sad? - book literally gives you two endings, option A and option B
manga series Zombie-Loan, Vol. 1 - without saying too much, there is no "ending."