Tito stated they were great friends, and he didn't want to 'do damage' on his friend. He also said he never ducked Chuck, and that they had a long standing agreement never to fight.
Chuck disagree's with it and says they were aquaintances at best and no agreement existed.
Watch UFC 47, commentary and 'hype' explain alot of it.
“There are three things all wise men fear: the sea in storm, a night with no moon, and the anger of a gentle man.”