With regard to Sergei, I didn't get the impression that he hated skating, but rather hated the regimen imposed by the Soviet system. In many books & interviews where people have mentioned G&G as a team, Sergei was the fun one and Katia was the driving force in the team. She mentions in her book that Sergei taught her to enjoy life and not just obsess over skating well. They were the right balance for each other.