He was going through Primal Therapy. All the old wounds, and his were horrendous and deep--Dad leaving at 5; Mom getting killed by a drunk off-duty cop before he made peace with her, all the loss and hurt were brought to the fore in a big way, and he had to confront them for the first time in his life. He went from a hurt young scruff to being idolized and deified by the entire planet. He couldn't walk alright, and he tried to run. He didn't have time to walk with him being thrust into the spotlight. He didn't have the luxury of confronting his past until this period. This is what I believe he was going through, not a message to Julian or any of that other crap.