Dex is arrogant he looks good but his attitude detracts from it.
He hugged Branch and Jay before he left the stage. That's not arrogant, I think that's pretty professional.
Fact is that Dexter wasn't respected as a Mr Olympia by anyone, didn't get his just due, or get his chance to bask in the sun from day one and his never been respected as even a contender for the title. People were upset that Jay was cheated but the fact is that Jay didn't do what was nessesary the previous year to earn that Sandow and Dexter used the opportunity to come in and plucked it out of his hands just like he did at the GNC Show of Strength.
Dexter came in on point as always and that's all you can ask him, he accepted 3rd, hugged both Branch and Jay and congratulated them and got off the stage. Personally I think that's a true sign of a champion and the fact remains that he earned a Mr Olympia when everyone was counting him out for years.
I think he will either retire or do so after doing one more Arnold Classic. But he did everything and then some with what God gave him and ran with it.