I think it's all about not adapting to the Italian way of life. I lived in Italy for several years and I know what it means to be a foreigner.
Ronaldo feels at home in England and he has the best memories of Manchester United.
The short time he spent in Italy was more criticized than all the years he spent in Spain. The press, the mass media are tremendous. They are the first to call someone who is not Italian if they can take advantage of it. But they are also the first to demolish his image before the slightest mistake.
They thought that Cristiano Ronaldo alone was going to take them to the final of the Champions League and it was not so. Nor was it the case for Messi's Barcelona.
Today the team concept triumphs, and in Manchester United Ronaldo can make that idea a reality.
Greetings.