I think he just acts like he hates wrestling to get more money from Vince, like playing hard to get. Secretly he loves doing it (especially when it's part time) and as you said you can tell he has tons of fun out there, and when the crowd chants suplex city or something he starts giggling like a school girl. His whole "I only do it for the money" is just an act man, he loves going out in front of 15000 and having fun.
The WWE Title match is so trash that nikkas forgetting about it already
Balor was taller than Jericho, who is a 6x world champ and WM main eventer