2/4, 6 handed, what the heck is going on here

SB is tight-aggressive most of the time, though he likes to spring up a move once in a while. He respects my game as tight, I haven't been playing a lot of pots. Also, from two showdowns after 100 hands, his continuation bets usually indicate strength.

UTG+2 is tight, and if he misses, he check/folds

Action:

UTG+2 raises to 8
Hero calls with K [img]/images/graemlins/diamond.gif[/img]10 [img]/images/graemlins/diamond.gif[/img] off button
SB raises to 12
UTG+2 calls
Hero calls

Flop: 8 [img]/images/graemlins/spade.gif[/img] 10 [img]/images/graemlins/heart.gif[/img] 8 [img]/images/graemlins/diamond.gif[/img]

SB bets out 16
UTG+2 folds
Hero?