3rd hand at this table. FWIW villain is 50/50/0

PokerStars No-Limit Hold'em, $0.05 BB (4 handed) - PokerStars Converter Tool from FlopTurnRiver.com

BB ($5.12)
UTG ($7.12)
Hero (Button) ($5.23)
SB ($5.02)

Preflop: Hero is Button with A, 9
UTG bets $0.15, Hero calls $0.15, 1 fold, BB calls $0.10

Flop: ($0.47) 8, 9, J (3 players)
BB checks, UTG checks, Hero bets $0.30, BB raises to $0.90, 1 fold, Hero ???

he seems to like his hand; i have the odds to call w/ nut FD, but is that the best line?