Is this news? Jones' fragile ego has been evident throughout his career. It's why a fighter as talented as him felt the need to cheat time and time again, even when he got caught he tried to keep that up. And since then he tries to play it down like it's no big deal or it didn't even happen cause admitting to it would mean sacrificing this narcissistic idea that he actually ever was the best. He keeps tumbling back and forth between trying to get people to like him cause he wants their praise and spiting everyone cause he can't take the fact that there are some critics among them. Same as when fighters criticize him, doesn't matter if it's a weight class above or 4 weight classes down, he'll trash talk anyone who doesn't praise him as the GOAT or dares to challenge him in any way, not leaving out a chance to proclaim himself the best ever.
With everything he screws up, he goes through the same cycle of first saying he needs to become a better man, then sweep it under the rug like it never happened, and eventually present some unheard excuse months or even years later to try and tell us he didn't do anything wrong in the first place.
Remember when he outright admitted to drinking or doing coke somewhere about a week before his fights, stating he did it cause he wanted a safety net to fall back on in case he lost? I mean, didn't take a lot to figure that out when he used it as an excuse for why the Gus fight got so close he should've lost, but he later went on to say it out loud himself.
So yeah, there's nothing more difficult in the world for Jon Jones than hearing that someone is better than him. Except maybe for having to admit someone's better than him by himself.