After a quiet start to his City career while he adapted to life in a new club, new league and new country after his move from Monaco in the summer of 2017, Bernardo blossomed in the second half of last season.
Guardiola also insists that he has no hesitation about playing Fabian Delph at left-back while Mendy is out.
Speaking to reporters, Guardiola has revealed that he intends to keep the player at the club for as long as he stays in charge of the Manchester club.
The manager is said to have stressed the importance of doing the basics quicker and more urgently.
Guardiola said the players shared his emotions. They didn't have a scoreboard when I first came - a man used to come around with a blackboard with the score on it!
The City boss's frustration was evident throughout the game as he showed his irritation on the touchline with what he saw as sloppy play.
"They are maybe angrier than me", he said and, although he insisted he had no fear that the team might be complacent after achieving 100 points last season, he hopes this will act as a wake-up call with City's Champions League campaign starting at home against Lyon on Wednesday.
Apart from Manchester City, clubs like Liverpool and Chelsea are strongly challenging for the trophy this season.
Do you think Silva has been one of the best players in England over the past decade? One particular passage of play, with a delectable piece of chest control, some impromptu juggling and a defence-splitting pass to release Raheem Sterling, who then hit the bar, was worthy of the Belgian.
"We were so delighted with Kevin last season because, after two minutes, they had an agreement". There's a lot of nice strikers and midfield players and the season will be judged in 11 months, not just in three weeks or one month.
Fulham were fortunate to escape further damage as Bernardo Silva had a good effort deflected wide and Fernandinho narrowly missed the target with a thunderous strike. I don't forget the behaviour he had last season when he played a lot but didn't start.
There could have been many more goals, but while they opened up Fulham with some ease, City were unable to fully punish them. He said, "But we were aggressive when we had the ball and we created chances".