dunno if it has anything to do with the fans, COVID didnt help him in that aspect too, but he can be mad at the managment, who cant get their shit together with the team and coaches. First season maybe wasnt the best, but we did play good vs Atleti second leg, then they hire a guy who has completely different vision to the club and sack him after bad season, but with trophy. Then they hire a rookie coach who is lucky to get CL qualification thanks to Napoli incompetence, both seasons end with early CL loss.
For him he basically lost 2 seasons thanks to this.