Infinity is a way to describe the incomprehensible to the human mind. In a way it notates a mystery. That kind of mystery exists in relationships. A lifetime is not enough to know someone else. It provides a brief glimpse.
Most performers take themselves too seriously. They forget there is a difference between the characters they play on the screen or stage and themselves, but the public doesn't forget there is a difference. They see how silly it is if you try to be the same person all the time.