Looking for a movie about a teenage boy's new girlfriend's passing away and the boy cant deal with it

Looking for a movie about a teenage boy’s new girlfriend’s passing away and the boy cant deal with it

“13 reasons why”…? 13 Reasons Why (TV Series 2017–2020) - IMDb

Maybe “The Bridge of Terabithia”?

It’s more than a simple kids-fantasy movie. It’s a movie about friendship, imagination, childhood, death and how to handle with this.

Sadly, the marketing made only a simple kids fantasy movie out of it.

Me and Earl and the Dying Girl (2015)?