You'll of course forgive me if I don't believe anything that comes out of his mouth at this point.
He didn't like being the number 2 in Michigan, so he left Michigan State. He was the only fish in the pond in Louisiana, but felt unappreciated even after winning his NC. I don't blame him for wanting to leave Miami. Here's a question for you, though. Ostensibly, he lied about his lack of interest in the Alabama job because Huizenga said he'd fire Saban on the spot if he found out he was talking to anyone from the university. Considering he was on a slow boat to nowhere with the Dolphins, why wouldn't he talk, given that to stay quiet would mean risking missing out on his 'dream job'?
Seriously, I saw that 'dream job' line yesterday and thought it was absolutely priceless. Some people will buy anything.
BTW, if you go back to each stop in his head coaching career, the scenario is basically like this one. He's denied and lied, then shown up at the new job talking about how much he's wanted it. Three years, four tops.