His most noteworthy trait is his unrivaled self-loathing. He always regards himself as lesser than those around him, and undeserving of human companionships. He actively describes himself as pathetic, a loser, and other similar terms.
he is a loner with a cynical view of reality.
Messi beat him in a UCL final.
Messi beat him in a UCL semi final to win another UCL
Messi beat him to many league titles and was the best player in the league many times.
H2H, Messi scored more goals, won more games.