I think it's a bit unfair to speculate that Bale is someone who plays professional football but doesn't actually like the game. By the way, David Batty is the best example of this. He had so little interest in the game that when he missed the decisive penalty in the shoot out against Argentina, one former player (I can't remember where I heard this) recalls going into the changing room after the game, and there was David Beckham in tears, completely inconsolable, and Batty sitting there already showered and changed, waiting to go home.
Anyway, I don't think Bale is one of those guys. I used to work with a mate of his and he reckoned he loved the game. This was before the Real Madrid move, though.
That miniscule bit of insight aside, in my opinion not much of what has gone on in the last few years is his fault. He started picking up injuries (the insertion of quotation marks around this word is classic Real Madrid propaganda) and Real seem to regret giving him his massive last contract. Since then they have been publicly bad-mouthing him, in some kind of weird campaign to get him to leave, or to save face, or whatever it is they are trying to do. He'd have to be a robot not to react to that, and his reaction seems to have been to hit Real right in the wallet by telling them he was willing to sit out his contract and collect his £600,000 a week if they won't pick him. I kind of understand that.
It's telling that this sudden willingness to move comes hot on the heels of two poor performances for Wales. I think he's realised that he can't sit at home, play a bit of golf, and rock up and play international football. He's realised his situation is damaging to Wales, so he's keener to find a solution that involves him playing.
The big question though is whether he's still physically up to it. His game has always been based around his physical attributes - his pace and power. If he's lost that, or if he spends half the season on the treatment table, then Spurs will lose out. I hope he tears it up, personally.