What does this dream mean?

to give a little bit of context, i have been friends with this guys since seventh grade and he is in my p.e class. i guess i do have feelings for him, and people have told me that it's clear he has feelings for me too, but we are really good friends.

in my dream i was in my gym class and i found out he died somehow, and i remember the dream being so sad because i was thinking about how much he would miss out on and how i couldn't talk to him anymore and his friends couldn't either and i was running in gym and i was crying and then i started laughing and i said "if he was here right now he'd be making fun of me for laughing" and the dream just seemed really sad??and it was mostly just me crying? and then when i woke up i was crying and felt kind of unsettled. i am very interested in psychology and i am really curious as to what this means. If it helps,i was talking about him to my mom yesterday and how i have feelings for him and how my best friend dated him and she doesn't like me talking about him. Sorry if this is long.