Some of the criticism is over the top and people have become psychologists without even without speaking to the man
, sure he has a big ego but that's no different to any elite sportsman. Whilst Ronaldo deserves criticism for his performances (deservedly) making personal digs is a whole new level obsession/hate.
What I saw is guy who thought he lost the game for his team (likely in his last tournament for his country) and was really emotional about it.
Whilst I understand it's not a normal reaction to have during the game it's understandable (and isn't the first to do it) . Some sportsmen are really emotional and cry whether win or losing, Roger Federer used to this too. The strange thing about it was the penalty wasn't even a bad one, it was just an incredible save.