I'll Tell You Why Frankie Lied, Olivia
... it's because your parents turned the whole "relationship" into something that it wasn't. You even said yourself that he was "just a friend." Your parents tried to push a relationship on y'all/act like y'all were potentially going to be together, & the boy didn't know how to react.
These parents make everything awkward & try to build these relationships up into something that they are not.