Well, it seems my play was as odd as I thought... here's what happened:

SMABUILDER is all-In [$15.95]
devylr: this hurts
devylr calls [$15.95].
** Dealing River ** [ Kh ]
devylr shows [ Ad, Kc ] a pair of kings.
SMABUILDER shows [ Ac, Jh ] high card ace.
devylr wins $49.65 from the main pot with a pair of kings.

SMABUILDER: nice call
devylr: thanks
denhigh: great f'ing call

There was something about the dynamic at this table... some of them were trained to fold to me, others kept trying to buy the pots back off of me. I separated the two groups, and played accordingly...
or maybe I was just out of my mind and lucky he was bluffing.

To me, his style said he'd slow play a high pp. If he had one, he would have let me bet down to the end, that's why I checked the flop. I just felt his AI bet meant he was trying to get me out of the pot. That solid a player doesn't catch a flop like that after a preflop raise.