I am looking for a book that I read in the 90’s.. with or 11th grade English.  It’s about an adolescent male who looses the friend. The friend may have died as a result of falling out of a tree OR…. The main character goes to the tree while processing his grief.  OR. There is a picture of a boy on the cover… sitting at the base of the tree. There is also a sort of soliloquy… where he talk about the death. 
I’ve been wondering about this book for years and the name isn’t even remotely close to the tip of my tongue.