Ronaldo was the favourite target of Dinamo Zagreb's fans during Madrid's 1-0 win in its Champions League opener on Wednesday.
The Portugal forward says "I think I am whistled at because I am handsome, rich and a great player and people are jealous of me."
Ronaldo also criticized the referee for not booking Dinamo's Jerko Leko when his tackle left the Madrid player with a bloody ankle.
He says "I don't understand anything. Some players can't be touched while I receive a beating."