25NL: top set to resistance when str8 card hits

[OSUGreg1983]

Villain is loose-passive (61/9/2.5 >23 hands). He INSTANTLY raised the turn like he was going to do it on whatever card came down. I can't decide if he's just being donkey and he's on the flush representing a str8 or if actually does have 89. Can't put him on 34/48, hard to put him on 89 as his range is so wide and he's bluffed pots with nothing. I have 11 re-outs in case he does have the straight and I'm slow to put him on the str8 b/c of the INSTA turn raise. Can't even comprehend how he typed it in as fast as he did. He may be on anything from AJ/KJ to 67/J7/J6 or possibly even 66/77. So hard to get away here.

Poker Stars, $0.10/$0.25 NL Hold'em Cash Game, 5 Players
LeggoPoker Hand History Converter

CO: $28.60
BTN: $35.60
SB: $23.80
Hero (BB): $28
UTG: $5.60

Pre-Flop: J[img]/images/graemlins/spade.gif[/img] J[img]/images/graemlins/diamond.gif[/img] dealt to Hero (BB)
2 folds, BTN calls $0.25, SB folds, <font color="red">Hero raises to $1.10</font>, BTN calls $0.85

Flop: ($2.30) 6[img]/images/graemlins/club.gif[/img] J[img]/images/graemlins/club.gif[/img] 7[img]/images/graemlins/diamond.gif[/img] (2 Players)
<font color="red">Hero bets $1.80</font>, BTN calls $1.80

Turn: ($5.90) 5[img]/images/graemlins/spade.gif[/img] (2 Players)
<font color="red">Hero bets $4.40</font>, <font color="red">BTN raises to $18</font>, Hero ??