Yes, they are good friends and already were good friends twenty years ago, but you're wrong about why an exhibition tour wasn't an option.
As Cornerman correctly points out in post #64, Jean had burned out and had no desire to compete. He is also right that the fine was not why she quit. Plain and simple, she had tired of competitive pool. She made this abundantly clear when she passed up a guaranteed payday at the IPT Las Vegas event of 2006, in which all living Hall-of-Famers were invited and every one of them was guaranteed a minimum prize of $30,000 just for showing up.