Sentence 1: Joey had quite a large ego. 
 Sentence 3: Because of his ego, he often acted up in front of large crowds 
 Sentence 4:  This kind of behaviour would usually turn off potential partners 
 Sentence 5:  Inside, Joey was just putting on a front to hide his insecurities 
 Option 1: He thought that everyone loved him. 
 Option 2: This was because everyone actually loved him.