Villain is 16.5/12.4 with a flop AF of 2.5 over 97 hands

Full Tilt No-Limit Hold'em, $0.25 BB (6 handed) - Full-Tilt Converter Tool from FlopTurnRiver.com

Button ($12.65)
SB ($22.45)
BB ($26.45)
UTG ($35.55)
MP ($25)
Hero (CO) ($23.85)

Preflop: Hero is CO with 10, 10
UTG raises to $0.85, 1 fold, Hero calls $0.85, 3 folds

Flop: ($2.05) 4, 2, 8 (2 players)
UTG checks, Hero bets $1.50, UTG raises to $6.55, [color=#666666][i]Hero ????