Here's another one to ponder.

Villain's stats. VPIP 15 / PFR 0 / AF 2 , after 400 hands.


PokerStars No-Limit Hold'em, $0.02 BB (8 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: FlopTurnRiver)

MP2 ($5.71)
CO ($3.23)
Button ($0.95)
Hero ($2.57)
BB ($1)
UTG ($1.99)
UTG+1 ($1.51)
MP1 ($5)

Preflop: Hero is SB with A, A.
2 folds, MP1 raises to $0.22, 3 folds, Hero raises to $0.6, 1 fold, MP1 calls $0.38.

Flop: ($1.22) 3, J, K (2 players)
Hero bets $0.8, MP1 raises to $1.6, Hero ???