I think the writing was on the wall he wanted a move after watching his last few post match interviews. Especially after the Derby game where he scored that cracker. He seemed to be full of pent up anger but kept his cool. however I did pick up on comments which took a dig at the knockers.
At the end of the day DCL was one of those players who pop up now and again that tend to split the fan base, although it's happened more in recent years with all the turmoil, Davies, Beto, Patterson even Gordon to name but a few.
I never thought DCL was as good as a lot of people made out in fairness, a decent prem striker for me on his day (when occasionally fit) and not much more.
If he does leave I hope he realises just how good Everton have been to him, not many if any other prem teams would have invested so much time,money and effort in to a player for such little reward. Good luck to him whatever he does next but we have more players than him I'd be mortified to see leave.