Top 2 and the flush gets there - am I a massive station?

SB is a TAG on the slightly nitty side, 17/14. 6.3% 3bet over 70 hands. Haven't seen him play a flushdraw yet.

I ended up stationing the river, but on reflection I really don't like it - can someone who looks fairly nitty so far really have too many 1-heart hands here? If he has AxJh he's freerolling on the turn, KhJx seems possible but I want to discount him flatting it pre quite a lot with those stats, JhKx again I want to discount pre, and I'm not sure he'd even raise the turn with it if he can have it at all. J9dd/cc probably raise the flop, hate this turn, and even if he could have them they get there on the river. A9cc/dd probably do raise the turn, but again, they get there on the river.

QhTx/QxTh seems even more unlikely preflop, as do KhTx/KxTh.

KhQx is about all I think he can have that I beat, but we don't know if he bombs the river with it very often.

OTOH, I also can't see what flushes he can have that _don't_ raise the flop. Surely 78hh, KQhh, KJhh, KThh, QThh, JThh raise the flop more often than not - but he is an unknown, so he may play these hands passively.

Poker Stars, $0.05/$0.10 No Limit Hold'em Cash, 6 Players
Poker Tools Powered By Holdem Manager - The Ultimate Poker Software Suite.

BTN: $12.82 (128.2 bb)
SB: $17.57 (175.7 bb)
BB: $25.01 (250.1 bb)
UTG: $18.08 (180.8 bb)
Hero (MP): $11.08 (110.8 bb)
CO: $15.85 (158.5 bb)

Preflop: Hero is MP with A J
UTG folds, Hero raises to $0.30, 2 folds, SB calls $0.25, BB calls $0.20

Flop: ($0.90) 6 J 9 (3 players)
SB checks, BB checks, Hero bets $0.50, SB calls $0.50, BB folds

Turn: ($1.90) A (2 players)
SB checks, Hero bets $1, SB raises to $2.50, Hero calls $1.50

River: ($6.90) 9 (2 players)
SB bets $4.95