I think it all boils sown to Dana not giving him any leeway and demanding that he not do the movie and not re-scheduling the fight. C'mon, you're gonna tell me that if you were offered a bunch of money to star in a feature film, alongside Liam Neeson, that you'd be all like, "My commitment is to supervising my workers at the Quiznos so I respectfully decline. Thank you but no." Yeah, alright.
These opportunities may not be there in a few years. Dana/Zuffa has a stranglehold on sponsors and most of those cats aren't making any money on their names or likeness, like the video game. It would suck to find yourself in the twilight of your career with a broken body, child-support and 10K in the bank.