Life seldom gives us closure in a relationship be it friends or in love, with a box with a pretty red bow.
How long has it been since you last talked ?
Sometimes the only thing you can hope for is that he’s ok and for whatever reason he just stopped interacting with you for any number of reasons, not saying it’s your fault.
You are young... life is just beginning. I’m a firm believer that relationships good or bad we learn lessons from.
Find someone you can actually do things with , go on dates, enjoy being a young lady
Grieve the loss of him in your life but don’t let it consume you.