$200NL ps vs descent player

[intel]

MHTS36 no read opponent unknown. Assuming plays well.

Poker Stars - No Limit Hold'em Cash Game - $1/$2 Blinds - 5 Players - (LegoPoker HH Converter)

catcher3333: $459.60
ChancelorEx: $52.65
mhts36: $206.55
ForzzaVelez: $209.30
Hero: $210.60

Preflop: Hero is dealt J[img]/images/graemlins/spade.gif[/img] J[img]/images/graemlins/diamond.gif[/img] (5 Players)
<font color="red">mhts36 raises to $8.00</font>, ForzzaVelez calls $8.00, <font color="red">Hero raises to $28.00</font>, 2 folds, mhts36 calls $20.00, ForzzaVelez folds

Flop: ($67) Q[img]/images/graemlins/diamond.gif[/img] 7[img]/images/graemlins/club.gif[/img] 9[img]/images/graemlins/diamond.gif[/img] (2 Players)
<font color="red">mhts36 bets $38.00</font>, Hero calls $38.00

Turn: ($143) T[img]/images/graemlins/heart.gif[/img] (2 Players)
mhts36 checks, Hero checks

River: ($143) 7[img]/images/graemlins/diamond.gif[/img] (2 Players)
<font color="red">mhts36 bets $120.00</font>, Hero folds

Pot Size: $263.00 ($2 Rake)

On the river first thought was he filled up. but the i thougth again and what set would he check the turn with and same with 2 pair. But why bet so big with the flush if he hit it, the board is paired and he wont get me calling that much. Now that i think of it, might have been a big bluff with 810o dont see how else he could have played the flush or the full house. Any thoughts on this :O insta snap call?